IP Library › Granted Patent US 6,820,489
Granted Patent Utility
US 6,820,489 · Confirmation No. 8655

OPTICAL DIFFERENTIAL PRESSURE SENSOR

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2017-09-29 OATH Oath or Declaration filed 24 View
2004-10-14 IFEE Issue Fee Payment (PTO-85B) 2 View
2004-07-14 NOA Notice of Allowance and Fees Due (PTOL-85) 3 View
2004-07-14 NOA Notice of Allowance and Fees Due (PTOL-85) 3 View
2004-07-14 892 List of references cited by examiner 1 View
2004-07-14 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2004-07-14 FWCLM Index of Claims 1 View
2004-07-14 SRFW Search information including classification, databases and other search related notes 1 View
2004-07-10 SRNT Examiner's search strategy and results 1 View
2004-03-15 OATH Oath or Declaration filed 3 View
2004-02-03 PEFN Pre-Exam Formalities Notice 2 View
2003-08-22 TRNA Transmittal of New Application 9 View
2003-08-22 SPEC Specification 38 View
2003-08-22 CLM Claims 3 View
2003-08-22 ABST Abstract 1 View
2003-08-22 DRW Drawings-only black and white line drawings 11 View
2003-08-22 WFEE Fee Worksheet (SB06) 1 View
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Quick Facts
Patent No.
US 6,820,489
App. No.
10/646,368
Filed
2003-08-22
Granted
2004-11-23
Pub. No.
US20040129083A1
Art Unit
2855
PTA
0 days