IP Library › Granted Patent US 6,635,172
Granted Patent Utility
US 6,635,172 · Confirmation No. 4601

APPARATUS FOR THE ENHANCEMENT OF WATER QUALITY IN A SUBTERRANEAN PRESSURIZED WATER DISTRIBUTION SYSTEM

Inventor: Michael R. Newman
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2015-04-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
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2013-03-26 SOL.NTC.SUIT Report on the filing or determination of an action regarding a patent 1 View
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2003-07-07 LET. Miscellaneous Incoming Letter 2 View
2003-07-07 DRW Drawings-only black and white line drawings 2 View
2003-07-07 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-07-07 LET. Miscellaneous Incoming Letter 1 View
2001-12-12 TRNA Transmittal of New Application 3 View
2001-12-12 SPEC Specification 12 View
2001-12-12 CLM Claims 6 View
2001-12-12 ABST Abstract 1 View
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2001-12-12 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,635,172
App. No.
10/021,742
Filed
2001-12-12
Granted
2003-10-21
Pub. No.
US20020043490A1
Art Unit
1723
PTA
-41 days