IP Library › Granted Patent US 6,662,860
Granted Patent Utility
US 6,662,860 · Confirmation No. 2262

HEAT TRANSFER PIPE FOR LIQUID MEDIUM HAVING GROOVED INNER SURFACE AND HEAT EXCHANGER EMPLOYING THE SAME

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2007-05-29 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2003-10-24 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-09-05 TRNA Transmittal of New Application 2 View
2002-09-05 DRW Drawings-only black and white line drawings 5 View
2002-07-23 TRNA Transmittal of New Application 1 View
2002-07-23 SPEC Specification 15 View
2002-07-23 CLM Claims 2 View
2002-07-23 ABST Abstract 1 View
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2002-07-23 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,662,860
App. No.
10/200,449
Filed
2002-07-23
Granted
2003-12-16
Pub. No.
US20030019614A1
Art Unit
3743
PTA
0 days