US2501709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic cutoff for damaged radiator sections
Assignee: United Aircraft Products Inc
•
Filing: 1946-05-08
•
Granted: 1950-03-28
•
Expires: 1966-05-08
Abstract
No abstract record available.
Inventors
- 👤 Harry T Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:17
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/14; F01P7/00; F01P7/14; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7758; Y10T137/7759
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB105351A
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US1061679A
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US1414780A
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GB112043A
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US1517155A
Cited
FR669897A
Cited
US2041863A
Cited
FR713302A
Cited
US2012351A
Cited
US2041726A
Cited
US2244373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |