US2820440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling apparatus
Assignee: Motors Liquidation Co
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Filing: 1955-04-28
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Granted: 1958-01-21
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Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 James W Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:49
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/10; F16D27/108; F16D27/112; F01; F01P; F01P7/00; F01P7/02; F01P7/08; F01P7/081; F01P7/082; F01P7/084; F16D48/00; F16D48/06; F16D48/064; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1021; F16D2500/1022; F16D2500/104; F16D2500/10406; F16D2500/10418; F16D2500/10443; F16D2500/1045; F16D2500/30; F16D2500/304; F16D2500/30404; F16D2500/305; F16D2500/3055; F16D2500/3056; F16D2500/306; F16D2500/3069; F16D27/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |