IP Library Granted Patent US 6,640,889
Granted Patent Utility
US 6,640,889 · Confirmation No. 6086

DUAL LOOP HEAT AND AIR CONDITIONING SYSTEM

Patented Case View Patent ↗
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Code Description Pages PDF
2003-08-29 IDS Information Disclosure Statement (IDS) Form (SB08) 3 View
2002-03-04 TRNA Transmittal of New Application 2 View
2002-03-04 SPEC Specification 8 View
2002-03-04 CLM Claims 4 View
2002-03-04 ABST Abstract 1 View
2002-03-04 DRW Drawings-only black and white line drawings 3 View
2002-03-04 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,640,889
App. No.
10/090,652
Filed
2002-03-04
Granted
2003-11-04
Examiner
FORD, JOHN K
Art Unit
3743
PTA
0 days