US3055170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid thermal engine
Assignee: Cleveland Pneumatic Industries Inc
•
Filing: 1958-04-14
•
Granted: 1962-09-25
•
Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 Jr William B Westcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:09
CPC Classifications
F; F01; F01B; F01B15/00; F01B15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US226570A
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US311102A
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US750494A
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US730248A
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US1032236A
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US1426462A
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US2471832A
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US2632995A
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US2839046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |