Patent EP0391871A2 successfully refreshed from Google Patents.
US2907178A
Expired / Lapsed
US
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Air conditioning systems
Assignee: Borg Warner Corp
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Filing: 1957-10-04
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Granted: 1959-10-06
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Expires: 1977-10-04
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Mcnatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:08
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/06; F24F1/00; F24F1/01; F24F3/001; F25; F25B; F25B13/00; F25B2313/00; F25B2313/003; F25B2313/004; F25B2313/025; F25B2313/0253; F25B25/00; F25B25/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2200215A
Cited
US2363294A
Cited
US2567758A
Cited
US2715317A
Cited
US2755637A
Cited
US2796740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |