US3689236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor for gaseous fuel
Assignee: ALBERT A MANNINO
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Filing: 1971-01-13
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Granted: 1972-09-05
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Expires: 1991-01-13
Abstract
Abstract A TUBULAR BODY HAVING A SIDE FUEL POST AND AN INLET AIR VALVE RESILIENTLY BIASED TOWARD A CLOSED POSITION AND OPERATIVE UNDER INTAKE VACUUM TO MAINTAIN SATISFACTORY FUEL-AIR MIXTURES THROUGHOUT A WIDE RANGE OF ENGINE SPEED.
Inventors
- 👤 Albert A Mannino
- 👤 Charles N Wolbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:48
CPC Classifications
F; F02; F02M; F02M21/00; F02M21/02; F02M21/04; F02M35/00; F02M35/10; F02M35/10242; F02M35/10275; F02B; F02B43/00; F02M21/0203; F02M21/0209; F02M21/0212; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |