Patent US2699151A successfully refreshed from Google Patents.
US2699151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary motor
Assignee: Individual
•
Filing: 1954-04-30
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Granted: 1955-01-11
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Expires: 1974-04-30
Abstract
No abstract record available.
Inventors
- 👤 Elmer G Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:27
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/30; F01C1/40; F01C1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US704913A
Cited
US1180200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |