Patent US2913227A successfully refreshed from Google Patents.
US2913227A
Expired / Lapsed
US
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Air conditioning unit
Assignee: Trane Co
•
Filing: 1956-02-06
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Granted: 1959-11-17
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Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 James D Bottorf
- 👤 Otto A Labus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:39
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/01; F24F13/00; F24F13/26; Y; Y10; Y10S; Y10S165/00; Y10S165/228; Y10S165/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2283928A
Cited
US2140305A
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US2251907A
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US2363294A
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US2363945A
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US2348127A
Cited
US2442963A
Cited
US2492757A
Cited
US2567758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |