Patent US2731314A successfully refreshed from Google Patents.
US2731314A
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US
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Refrigerating apparatus
Assignee: American Motors Corp
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Filing: 1953-10-05
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Granted: 1956-01-17
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Expires: 1973-10-05
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Doeg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:37
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F16J1/22; F04; F04B; F04B39/00; F04B39/0005; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32819; Y10T403/32861; Y10T403/32893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US76448A
Cited
US1789089A
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US1921607A
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US2040032A
Cited
US2394409A
Cited
US2554992A
Cited
US2546045A
Cited
US2644731A
Cited
US2664327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |