US2723653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine of high compression type
Assignee: Fairbanks Morse and Co
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Filing: 1952-10-24
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Granted: 1955-11-15
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Expires: 1972-10-24
Abstract
No abstract record available.
Inventors
- 👤 Floyd A Blake
- 👤 Lionel D Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:43
CPC Classifications
F; F02; F02B; F02B43/00; F02M; F02M21/00; F02M21/02; F02M21/0218; F02M21/0248; F02M21/0257; F02M21/026; F02M21/0269; F02M21/0272; F02M21/0275; F02M21/0284; F02B25/00; F02B25/02; F02B25/08; F02B2710/00; F02B2710/02; F02B2710/026; F02M21/0251; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |