IP Library › Granted Patent US 6,631,639
Granted Patent Utility
US 6,631,639 · Confirmation No. 5358

SYSTEM AND METHOD OF NON-INVASIVE DISCREET , CONTINUOUS AND MULTI-POINT LIQUID LEVEL SENSING USING FLEXURAL WAVES

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2015-08-04 SES.LOSS.ELC Notification of loss of entitlement to small entity status via Patent Application Information Retrieval (PAIR) 1 View
2012-07-11 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2012-07-11 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2012-06-29 PA.. Power of Attorney 1 View
2012-06-29 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2012-06-29 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-07-17 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-07-17 LET. Miscellaneous Incoming Letter 1 View
2002-08-30 TRNA Transmittal of New Application 3 View
2002-08-30 SPEC Specification 24 View
2002-08-30 CLM Claims 6 View
2002-08-30 ABST Abstract 1 View
2002-08-30 DRW Drawings-only black and white line drawings 4 View
2002-08-30 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,631,639
App. No.
10/231,595
Filed
2002-08-30
Granted
2003-10-14
Art Unit
2856
PTA
0 days