Patent US4120020A successfully refreshed from Google Patents.
US2961853A
Expired / Lapsed
US
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Refrigeration apparatus
Assignee: Individual
•
Filing: 1958-07-10
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Granted: 1960-11-29
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Expires: 1978-07-10
Abstract
No abstract record available.
Inventors
- 👤 Henry F Cohrt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:02
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/14; A23G9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1324868A
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US1515165A
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US1767857A
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US2320265A
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US2233852A
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US2576995A
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US2668692A
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US2653014A
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US2758823A
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US2791227A
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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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |