IP Library Granted Patent US 6,681,787
Granted Patent Utility
US 6,681,787 · Confirmation No. 3602

SYSTEM AND METHOD OF OPERATION OF A DIGITAL MASS FLOW CONTROLLER

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2020-05-04 SOL.NTC.SUIT Report on the filing or determination of an action regarding a patent 1 View
2011-03-24 SOL.NTC.SUIT Report on the filing or determination of an action regarding a patent 1 View
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2007-06-14 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-11-25 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-11-25 OATH Oath or Declaration filed 4 View
2003-11-25 LET. Miscellaneous Incoming Letter 1 View
2002-02-12 TRNA Transmittal of New Application 6 View
2002-02-12 SPEC Specification 1 View
2001-12-06 TRNA Transmittal of New Application 2 View
2001-12-06 A.PE Preliminary Amendment 6 View
2001-12-06 SPEC Specification 28 View
2001-12-06 CLM Claims 4 View
2001-12-06 ABST Abstract 1 View
2001-12-06 DRW Drawings-only black and white line drawings 5 View
2001-12-06 OATH Oath or Declaration filed 8 View
2001-12-06 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,681,787
App. No.
10/006,774
Filed
2001-12-06
Granted
2004-01-27
Pub. No.
US20020139418A1
Art Unit
3753
PTA
-97 days