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Old 04-30-2013, 04:15 PM   #51 (permalink)
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diesel_fireman2001's Avatar
Join Date: Nov 2006
Location: Oregon

I remember seeing a post on here where someone linked to the Matrix patent and the USPTO listed the patent as

"Patent Expired for Failure to Pay Maintenance Fees."

**EDIT found it**

Patent # is 5613483
Aplication # is 08555625

Enter the numbers and click bibliographic data

Not shure if this is the only Matrix patnet.
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