US2934915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charged refrigeration system
Assignee: PRIMORE SALES Inc
•
Filing: 1957-03-25
•
Granted: 1960-05-03
•
Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 Stanley H Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:03
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/40; F25B2345/00; F25B2345/006; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1703311A
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US1634813A
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US1906826A
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US2007288A
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US2518299A
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US2540649A
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US2502630A
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US2667760A
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US2828759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |