IP Library › Granted Patent US 6,481,855
Granted Patent Utility
US 6,481,855 · Confirmation No. 2794

KEYSTONE DISTORTION CORRECTION SYSTEM FOR USE IN MULTIMEDIA PROJECTORS

Inventor: Peter R. Oehler
Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2010-04-13 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-04-13 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-04-05 PA.. Power of Attorney 11 View
2010-04-05 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-09-02 LET. Miscellaneous Incoming Letter 1 View
2003-09-02 PA.. Power of Attorney 2 View
2003-09-02 OATH Oath or Declaration filed 3 View
2001-01-12 TRNA Transmittal of New Application 3 View
2001-01-12 SPEC Specification 8 View
2001-01-12 CLM Claims 4 View
2001-01-12 ABST Abstract 1 View
2001-01-12 DRW Drawings-only black and white line drawings 3 View
2001-01-12 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,481,855
App. No.
09/760,172
Filed
2001-01-12
Granted
2002-11-19
Pub. No.
US20020093627A1
Art Unit
2851
PTA
0 days