Patent US2959933A successfully refreshed from Google Patents.
US2959933A
Expired / Lapsed
US
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Air conditioning apparatus
Assignee: Carrier Corp
•
Filing: 1956-12-03
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Granted: 1960-11-15
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Expires: 1976-12-03
Abstract
No abstract record available.
Inventors
- 👤 Edward J Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:57
CPC Classifications
F; F25; F25B; F25B13/00; F24; F24F; F24F3/00; F24F3/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2066161A
Cited
US2243478A
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US2276835A
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US2513373A
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US2654227A
Cited
US2589855A
Cited
US2793508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |