IP Library Granted Patent US 6,525,886
Granted Patent Utility
US 6,525,886 · Confirmation No. 3975

TWO GROUP ZOOM LENS HAVING WEAK FRONT ELEMENT

Inventor: Alan E. Lewis
Patented Case View Patent ↗
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Code Description Pages PDF
2017-04-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2017-04-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2017-04-06 PA.. Power of Attorney 44 View
2017-04-06 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2017-04-06 R3.73 Assignee showing of ownership per 37 CFR 3.73 108 View
2017-04-06 N417 Electronic Filing System Acknowledgment Receipt 2 View
2013-07-08 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2013-07-08 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2013-05-30 PA.. Power of Attorney 2 View
2013-05-30 N417 Electronic Filing System Acknowledgment Receipt 2 View
2013-05-30 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2001-06-20 TRNA Transmittal of New Application 1 View
2001-06-20 SPEC Specification 12 View
2001-06-20 CLM Claims 3 View
2001-06-20 ABST Abstract 1 View
2001-06-20 DRW Drawings-only black and white line drawings 24 View
2001-06-20 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,525,886
App. No.
09/885,572
Filed
2001-06-20
Granted
2003-02-25
Art Unit
2873
PTA
-128 days