Patent US2872790A successfully refreshed from Google Patents.
US2872790A
Expired / Lapsed
US
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Refrigerator for use in connection with engines utilizing volatile fuel
Assignee: Individual
•
Filing: 1956-02-08
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Granted: 1959-02-10
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Expires: 1976-02-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Simpson
- 👤 Herbert H Denmark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:07
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3202
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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |