US2578028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttle controlled carburetor producing a rich mixture for an exhaust turbine
Assignee: Individual
•
Filing: 1947-01-31
•
Granted: 1951-12-11
•
Expires: 1967-01-31
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Udale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:56
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/04; F02B37/10; F02B37/105; F02B33/00; F02B33/44; F02B33/446; F02B37/12; F02B37/16; F02B37/164; F02B37/166; F02B39/00; F02B39/02; F02B39/12; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2421518A
Cited
US2375006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |