US2916880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive for refrigeration systems or the like
Assignee: Sundstrand Corp
•
Filing: 1956-09-28
•
Granted: 1959-12-15
•
Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Melvin M Hann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:19
CPC Classifications
F; F25; F25B; F25B27/00; B; B60; B60H; B60H1/00; B60H1/00421; B60H1/00435; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5199; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18152; Y10T74/1816
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077974A
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US2104696A
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US2112466A
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US2264821A
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US2530241A
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US2562367A
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US2518316A
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US2618932A
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US2746240A
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US2628470A
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US2741895A
Cited
US2753696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |