IP Library › Granted Patent US 6,437,921
Granted Patent Utility Small
US 6,437,921 · Confirmation No. 7255

TOTAL INTERNAL REFLECTION PRISMATICALLY INTERLEAVED REFLECTIVE FILM DISPLAY SCREEN

Inventor: Lorne A. Whitehead
Patented Case View Patent ↗
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 Code Description Pages PDF
2020-06-19 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2020-06-19 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2020-06-10 PA.. Power of Attorney 1 View
2020-06-10 N417 Electronic Filing System Acknowledgment Receipt 2 View
2020-06-10 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2020-06-10 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2020-04-23 OATH Oath or Declaration filed 13 View
2013-10-08 IMIS Miscellaneous Internal Document 4 View
2001-08-14 TRNA Transmittal of New Application 1 View
2001-08-14 SPEC Specification 9 View
2001-08-14 CLM Claims 4 View
2001-08-14 ABST Abstract 1 View
2001-08-14 DRW Drawings-only black and white line drawings 2 View
2001-08-14 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,437,921
App. No.
09/928,730
Filed
2001-08-14
Granted
2002-08-20
Art Unit
2873
PTA
0 days