IP Library › Granted Patent US 6,725,897
Granted Patent Utility
US 6,725,897 · Confirmation No. 3270

VARIABLE FRICTION DEVICE FOR A CORDLESS BLIND

Inventor: Roger C. Palmer
Patented Case View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2011-03-14 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2005-01-31 COCOUT Certificate of Correction - Post Issue Communication 1 View
2004-01-26 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-01-26 A.NA Amendment after Notice of Allowance (Rule 312) 2 View
2004-01-26 LET. Miscellaneous Incoming Letter 1 View
2004-01-26 DRW Drawings-only black and white line drawings 12 View
2001-11-28 TRNA Transmittal of New Application 2 View
2001-11-28 SPEC Specification 23 View
2001-11-28 CLM Claims 8 View
2001-11-28 ABST Abstract 1 View
2001-11-28 DRW Drawings-only black and white line drawings 12 View
2001-11-28 OATH Oath or Declaration filed 4 View
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Quick Facts
Patent No.
US 6,725,897
App. No.
09/995,375
Filed
2001-11-28
Granted
2004-04-27
Pub. No.
US20020033241A1
Art Unit
3634
PTA
-157 days