IP Library › Patent Application 09813504
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App. No. 09/813,504 · Confirmation No. 2085

HEAT POWERED HEAT PUMP SYSTEM AND METHOD OF MAKING SAME

Inventor: Frank W. Ratliff
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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 Code Description Pages PDF
2012-05-24 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2012-05-17 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2012-05-17 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2012-05-09 PA.. Power of Attorney 3 View
2012-05-09 N417 Electronic Filing System Acknowledgment Receipt 2 View
2001-03-21 TRNA Transmittal of New Application 2 View
2001-03-21 SPEC Specification 17 View
2001-03-21 CLM Claims 8 View
2001-03-21 ABST Abstract 1 View
2001-03-21 DRW Drawings-only black and white line drawings 6 View
2001-03-21 OATH Oath or Declaration filed 3 View
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Quick Facts
App. No.
09/813,504
Filed
2001-03-21
Granted
2002-07-16
Art Unit
3763
PTA
-17 days