US2986896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive for refrigeration systems or the like
Assignee: Sundstrand Corp
•
Filing: 1956-12-31
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Granted: 1961-06-06
•
Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Melvin M Hann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:32
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/04; F16F15/08; B; B60; B60H; B60H1/00; B60H1/32; B60H1/3204; B60H1/3222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077974A
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US2618932A
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US2669098A
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US2699043A
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US2654999A
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US2720087A
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US2752760A
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US2746267A
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US2753696A
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US2794330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |