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<P style="font-size: 14pt" align="center"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
<FONT
style="font-size: 12pt">Washington, D.C. 20549 </FONT></B>

<P style="font-size: 18pt" align="center"><B>FORM 8-K</B>

<P style="font-size: 12pt" align="center"><B>CURRENT REPORT<BR>
Pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934</B>

<P style="font-size: 10pt" align="center"><B>Date of Report (Date of earliest event reported): December 10, 2008</B>

<P align="center">&nbsp;

<P style="font-size: 24pt" align="center"><B>INTERPHASE CORPORATION<BR>
</B><FONT style="font-size: 10pt">(Exact name
of registrant as specified in its charter) </FONT>
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  <TD style="border-bottom: #000000 1px solid"><B>Texas</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>0-13071</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>75-1549797</B></TD>
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 <TR valign="top">
  <TD>(State or other Jurisdiction of Incorporation)</TD>
  <TD>&nbsp;</TD>
  <TD>(Commission File Number)</TD>
  <TD>&nbsp;</TD>
  <TD>(IRS Employer Identification No.)</TD>
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  <TD style="border-bottom: #000000 1px solid"><B>2901 North Dallas Parkway, Suite 200, Plano, Texas<BR>
</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>75093</B></TD>
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 <TR valign="top">
  <TD>(Address of Principal Executive Offices)</TD>
  <TD>&nbsp;</TD>
  <TD>(Zip Code)</TD>
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<P style="font-size: 10pt" align="center">Registrant&#8217;s telephone number, including area code: <B>(214)
654-5000</B>
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  <TD style="border-bottom: #000000 1px solid" nowrap><B>Not Applicable<BR>
</B></TD>
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 <TR>
  <TD nowrap>(Former name or former address if changed since last report.)</TD>
 </TR>

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<P style="font-size: 10pt" align="left">Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

<P style="font-size: 10pt" align="left"><FONT face="Wingdings">o</FONT> Written communications pursuant to Rule 425
under the Securities Act (17 CFR 230.425)<BR>
<BR>
<FONT face="Wingdings">o</FONT> Soliciting material pursuant to Rule
14a-12 under the Exchange Act (17 CFR 240.14a-12)<BR>
<BR>
<FONT face="Wingdings">o</FONT> Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<BR>
<BR>
<FONT
face="Wingdings">o</FONT> Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))<BR>


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<P style="display: none; font-size: 10pt" align="center">1
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  <TD nowrap align="left" width="3%"><B>Item&nbsp;1.01.</B></TD>
  <TD width="3%">&nbsp;</TD>
  <TD><B>Entry into a Material Definitive Agreement.</B></TD>
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<P style="font-size: 10pt" align="left">Effective December&nbsp;10, 2008, the Company amended its lease on its
manufacturing facility in Carrollton, Texas with LIT Industrial Texas Limited Partnership to extend the lease from its
current expiration date of January&nbsp;31, 2009 to the amended expiration of March&nbsp;31, 2014. A copy of the
amendment is attached to this Form 8-k as Exhibit&nbsp;10.1, which includes the terms of the future rent schedule.

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  <TD nowrap align="left" width="3%"><B>Item&nbsp;9.01.</B></TD>
  <TD width="3%">&nbsp;</TD>
  <TD><B>Financial Statements and Exhibits</B></TD>
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<P style="font-size: 10pt; text-indent: 3%" align="left">(d)&nbsp;Exhibits

<P style="font-size: 10pt; margin-left: 7%" align="left">Exhibit&nbsp;10.1 &#8212; Amendment on Leased Facility
Carrollton, Texas

<P style="font-size: 10pt" align="center"><B>SIGNATURE</B>

<P style="font-size: 10pt" align="left">Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

<P style="font-size: 10pt; margin-left: 46%" align="left"><B>Interphase Corporation</B>

<P style="font-size: 10pt; margin-left: 46%" align="left">By: <U>/s/ Thomas N. Tipton
Jr.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>

<DIV style="font-size: 10pt" align="left">Date: December&nbsp;15, 2008</DIV>

<P style="margin-top: -11pt; font-size: 10pt; margin-left: 46%" align="left">Title: Chief Financial Officer, <BR>
Vice
President of Finance and Treasurer

<P style="font-size: 10pt" align="center"><B>EXHIBIT INDEX</B>

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  <TD style="background: none transparent scroll repeat 0% 0%" width="6%">&nbsp;</TD>
  <TD nowrap align="left" width="3%">Exhibit&nbsp;10.1</TD>
  <TD width="3%">&nbsp;</TD>
  <TD>Amendment on Leased Facility Carrollton, Texas</TD>
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{"company-data": {"conformed-name": "INTERPHASE CORP", "cik": "0000728249", "assigned-sic": "3576", "irs-number": "751549797", "state-of-incorporation": "TX", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-13071", "film-number": "081249953"}, "business-address": {"street1": "13800 SENLAC DR", "city": "DALLAS", "state": "TX", "zip": "75234", "phone": "2146545000"}, "mail-address": {"street1": "13800 SENLAC DR", "street2": "13800 SENLAC DR", "city": "DALLAS", "state": "TX", "zip": "75234"}}
Filed by Bowne Pure Compliance
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934
Date of Report (Date of earliest event reported): December 10, 2008
INTERPHASE CORPORATION
(Exact name
of registrant as specified in its charter)
Texas
0-13071
75-1549797
(State or other Jurisdiction of Incorporation)
(Commission File Number)
(IRS Employer Identification No.)
2901 North Dallas Parkway, Suite 200, Plano, Texas
75093
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code:
(214)
654-5000
Not Applicable
(Former name or former address if changed since last report.)
Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
o
Written communications pursuant to Rule 425
under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule
14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))
Item 1.01.
Entry into a Material Definitive Agreement.
Effective December 10, 2008, the Company amended its lease on its
manufacturing facility in Carrollton, Texas with LIT Industrial Texas Limited Partnership to extend the lease from its
current expiration date of January 31, 2009 to the amended expiration of March 31, 2014. A copy of the
amendment is attached to this Form 8-k as Exhibit 10.1, which includes the terms of the future rent schedule.
Item 9.01.
Financial Statements and Exhibits
(d) Exhibits
Exhibit 10.1 — Amendment on Leased Facility
Carrollton, Texas
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Interphase Corporation
By:
/s/ Thomas N. Tipton
Jr.
Date: December 15, 2008
Title: Chief Financial Officer,
Vice
President of Finance and Treasurer
EXHIBIT INDEX
Exhibit 10.1
Amendment on Leased Facility Carrollton, Texas