IP Library › Granted Patent US 6,591,521
Granted Patent Utility
US 6,591,521 · Confirmation No. 1530

DIPPER DOOR AND DIPPER DOOR ASSEMBLY

Inventor: Robert F. Brown
Patented Case View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2016-07-07 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2016-07-07 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2016-06-28 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2016-06-28 PA.. Power of Attorney 1 View
2016-06-28 N417 Electronic Filing System Acknowledgment Receipt 2 View
2012-03-01 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2010-11-02 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-11-02 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-10-22 PA.. Power of Attorney 1 View
2010-10-22 N417 Electronic Filing System Acknowledgment Receipt 2 View
2010-10-22 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2001-09-26 TRNA Transmittal of New Application 2 View
2001-09-26 SPEC Specification 6 View
2001-09-26 CLM Claims 2 View
2001-09-26 ABST Abstract 1 View
2001-09-26 DRW Drawings-only black and white line drawings 4 View
2001-09-26 OATH Oath or Declaration filed 2 View
2001-09-26 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,591,521
App. No.
09/963,979
Filed
2001-09-26
Granted
2003-07-15
Pub. No.
US20020040540A1
Art Unit
3671
PTA
-77 days