IP Library › Granted Patent US 6,577,456
Granted Patent Utility
US 6,577,456 · Confirmation No. 5597

SINGLE FOCUS LENS

Inventor: Kenichi Sato
Patented Case View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2019-05-01 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-04-25 PA.. Power of Attorney 2 View
2019-04-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2019-04-25 R3.73 Assignee showing of ownership per 37 CFR 3.73 3 View
2002-03-06 TRNA Transmittal of New Application 2 View
2002-03-06 SPEC Specification 12 View
2002-03-06 CLM Claims 2 View
2002-03-06 ABST Abstract 1 View
2002-03-06 DRW Drawings-only black and white line drawings 8 View
2002-03-06 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,577,456
App. No.
10/091,282
Filed
2002-03-06
Granted
2003-06-10
Pub. No.
US20030048549A1
Examiner
DINH, JACK
Art Unit
2873
PTA
0 days