Patent US2991931A successfully refreshed from Google Patents.
US2991931A
Expired / Lapsed
US
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Refrigerating apparatus
Assignee: Motors Liquidation Co
•
Filing: 1959-03-23
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Granted: 1961-07-11
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Galin Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:51
CPC Classifications
F; F16; F16N; F16N13/00; F16N13/20; F25; F25B; F25B31/00; F25B31/02; F25B31/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1740587A
Cited
US1928300A
Cited
US2044867A
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US2147194A
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US2636667A
Cited
US2812128A
Cited
US2883101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |