IP Library › Granted Patent US 6,648,061
Granted Patent Utility
US 6,648,061 · Confirmation No. 5036

HEATING ELEMENT FOR A REGENERATIVE HEAT EXCHANGER AND METHOD FOR PRODUCING A HEATING ELEMENT

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2015-01-24 C.AD Change of Address 1 View
2015-01-24 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2015-01-24 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-08-15 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-15 C.AD Change of Address 1 View
2003-08-15 OATH Oath or Declaration filed 1 View
2003-08-15 LET. Miscellaneous Incoming Letter 1 View
2003-08-11 PA.. Power of Attorney 5 View
2003-08-11 OATH Oath or Declaration filed 1 View
2002-02-27 TRNA Transmittal of New Application 2 View
2002-02-27 SPEC Specification 9 View
2002-02-27 CLM Claims 2 View
2002-02-27 ABST Abstract 1 View
2002-02-27 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,648,061
App. No.
10/084,133
Filed
2002-02-27
Granted
2003-11-18
Pub. No.
US20020108245A1
Art Unit
1773
PTA
-5 days