US2692587A
Expired / Lapsed
US
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Internal-combustion engine
Assignee: Texaco Inc
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Filing: 1952-06-23
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Granted: 1954-10-26
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Expires: 1972-06-23
Abstract
No abstract record available.
Inventors
- 👤 Everett M Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:44
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/06; F02D19/08; F02B; F02B3/00; F02B3/02; F02D19/0602; F02D19/0607; F02D19/061; F02D19/0663; F02D19/0684; F02D19/0686; F02D19/0689; F02B2275/00; F02B2275/42; Y; Y02; Y02T; Y02T10/00; Y02T10/10; 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) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |