US2526635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel air ratio instrument
Assignee: Individual
•
Filing: 1945-11-14
•
Granted: 1950-10-24
•
Expires: 1965-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles W Cochran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:51
CPC Classifications
F; F02; F02M; F02M19/00; F02M19/01; F02B; F02B77/00; F02B77/08; F23; F23N; F23N1/00; F23N1/02; F23N1/027; G; G01; G01F; G01F1/00; G01F9/00; G01F9/001; F23N5/00; F23N5/18; F23N2005/181; F23N2225/00; F23N2225/04; F23N2225/06; F23N2225/26; F23N2225/30; F23N2231/00; F23N2231/20; F23N2231/22; F23N2235/00; F23N2235/12; F23N2235/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308626A
Cited
US2143820A
Cited
US1333986A
Cited
US1363513A
Cited
US1921145A
Cited
US2074882A
Cited
GB490607A
Cited
US2217641A
Cited
US2217642A
Cited
US2382625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |