IP Library › Granted Patent US 6,640,384
Granted Patent Utility
US 6,640,384 · Confirmation No. 6717

CONVERTIBLE BLOWER AND VACUUM

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2017-06-26 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2013-07-22 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2013-07-22 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2013-07-18 PA.. Power of Attorney 2 View
2013-07-18 N417 Electronic Filing System Acknowledgment Receipt 2 View
2013-07-18 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2003-08-25 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-25 LET. Miscellaneous Incoming Letter 1 View
2001-10-10 TRNA Transmittal of New Application 3 View
2001-10-10 SPEC Specification 9 View
2001-10-10 CLM Claims 6 View
2001-10-10 ABST Abstract 1 View
2001-10-10 DRW Drawings-only black and white line drawings 5 View
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Quick Facts
Patent No.
US 6,640,384
App. No.
09/974,310
Filed
2001-10-10
Granted
2003-11-04
Pub. No.
US20030066159A1
Art Unit
1744
PTA
-43 days