US2927736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cooling a device which produces heat during the operation thereof
Assignee: Individual
•
Filing: 1954-04-23
•
Granted: 1960-03-08
•
Expires: 1974-04-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick S Rohatyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:25
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/08; H01F27/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1546450A
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US1845954A
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US2235152A
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US2289882A
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US2459322A
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US2551956A
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US2636683A
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US2761101A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |