US3104272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary fuel control for two-stage carburetor
Assignee: ACF Industries Inc
•
Filing: 1959-02-09
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Granted: 1963-09-17
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Expires: 1979-02-09
Abstract
No abstract record available.
Inventors
- 👤 Harold A Carlson
- 👤 Albert W Zub
- 👤 Olin J Eickmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:52
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4304; F02M2700/4311
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
AN INTERCHANGEABLE VENTURI BLOCK FOR A CARBURETOR, SAID BLOCK COMPRISING AN ANNULAR PASAAGE HAVING AN INNER VENTURI SURFACE ADAPTED TO BE ALIGNED WITH THE CARBURETOR AIR INLET, A MAIN FUEL PASSAGE IN SAID BLOCK TERMINATING AT ONE END IN A NOZZLE OUTLET WITHIN SAID ANNULAR PASSAGE AND AT THE OTHER END AT AN OPENING IN THE
Claim 2
Dependent Claim
56 words
AN INTERCHANGEABLE VENTURI BLOCK FOR A CARBURETOR, SAID BLOCK COMPRISING AN ANNULAR PASAAGE HAVING AN INNER VENTURI SURFACE ADAPTED TO BE ALIGNED WITH THE CARBURETOR AIR INLET, A MAIN FUEL PASSAGE IN SAID BLOCK TERMINATING AT ONE END IN A NOZZLE OUTLET WITHIN SAID ANNULAR PASSAGE AND AT THE OTHER END AT AN OPENING IN THE
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |