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App. No. 09/841,645 · Confirmation No. 6433

HEAT EXCHANGER HEADER CONSTRUCTION

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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 Code Description Pages PDF
2001-07-19 TRNA Transmittal of New Application 3 View
2001-07-19 DRW Drawings-only black and white line drawings 2 View
2001-04-24 TRNA Transmittal of New Application 3 View
2001-04-24 SPEC Specification 14 View
2001-04-24 CLM Claims 7 View
2001-04-24 ABST Abstract 1 View
2001-04-24 DRW Drawings-only black and white line drawings 2 View
2001-04-24 OATH Oath or Declaration filed 2 View
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Quick Facts
App. No.
09/841,645
Filed
2001-04-24
Granted
2002-05-14
Art Unit
3743
PTA
0 days