US2939775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel mixing device
Assignee: Universal Carburetor Co
•
Filing: 1957-03-28
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Granted: 1960-06-07
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Expires: 1977-03-28
Abstract
No abstract record available.
Inventors
- 👤 John R L Middleton
- 👤 John W Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:48
CPC Classifications
F; F02; F02M; F02M21/00; F02B; F02B43/00; F02M2700/00; F02M2700/12; F02M2700/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A COMBINATION AIR CLEANER AND FUEL MIXING DEVICE INCLUDING, A FIRST HOLLOW CONVERGING TRUNCATED CONESHAPED ELEMENT, A SECOND HOLLOW CONVERGING TRUNCATED CONE-SHAPED ELEMENT POSITIONED AT LEAST PARTIALLY WITHIN AND IN SPACED RELATION TO SAID FIRST ELEMENT, AN AIR FILTER SURROUNDING SAID ELEMENTS SO THAT SAID ELEMENTS AND SAID AIR FILTER ARE DISPOSED IN SUBSTANTIALLY THE SAME HORIZONTAL PLANE, MEANS PROVIDING COMMUNICATION BETWEEN THE LARGE
Claim 2
Dependent Claim
64 words
A COMBINATION AIR CLEANER AND FUEL MIXING DEVICE INCLUDING, A FIRST HOLLOW CONVERGING TRUNCATED CONESHAPED ELEMENT, A SECOND HOLLOW CONVERGING TRUNCATED CONE-SHAPED ELEMENT POSITIONED AT LEAST PARTIALLY WITHIN AND IN SPACED RELATION TO SAID FIRST ELEMENT, AN AIR FILTER SURROUNDING SAID ELEMENTS SO THAT SAID ELEMENTS AND SAID AIR FILTER ARE DISPOSED IN SUBSTANTIALLY THE SAME HORIZONTAL PLANE, MEANS PROVIDING COMMUNICATION BETWEEN THE LARGE
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |