US2491462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine driven air conditioning
Assignee: —
•
Filing: —
•
Granted: 1949-12-13
•
Expires: 1966-12-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:53
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/04; F02C6/06; B; B64; B64D; B64D13/00; B64D13/06; Y; Y02; Y02T; Y02T50/00; Y02T50/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2391838A
Cited
US2002057A
Cited
US2119402A
Cited
US2297495A
Cited
US2391486A
Cited
US2284984A
Cited
US2414202A
Cited
US2405670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |