US3034449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating piston type engine
Assignee: Individual
•
Filing: 1960-04-08
•
Granted: 1962-05-15
•
Expires: 1980-04-08
Abstract
No abstract record available.
Inventors
- 👤 Moore Clyde Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:28
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/02; F01C1/063; F02; F02B; F02B53/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US309734A
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US1095034A
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US1112734A
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US1330629A
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FR559387A
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US1889508A
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US1904892A
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US2050603A
Cited
GB419123A
Cited
US2271068A
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US2124327A
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US2142706A
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US2156180A
Cited
US2284186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |