US3211137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Input valve systems for internal combustion engines
Assignee: Individual
•
Filing: 1963-03-12
•
Granted: 1965-10-12
•
Expires: 1983-03-12
Abstract
No abstract record available.
Inventors
- 👤 Love John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:14
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/26; F02; F02B; F02B2275/00; F02B2275/18; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02F2001/244; F02F2001/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN NAN INTERNAL COMBUSTION ENGINE, A MAIN FUEL INPUT MANIFOLD CONTAINING A THROTTLE CLOSING MEANS, A PRIMARY CONDUIT CONNECTING THE SAID MAIN FUEL INPUT MANIFOLD WITH THE PRIMARY INPUT PORT TO THE COMBUSTION CHAMBER, A PRIMARY INTAKE VALVE CONTROLLING THE OPENING AND CLOSING OF THE SAID PRIMARY INPUT PORT, SAID PRIMARY INTAKE VALVE HAVING ITS OWN ACTUATING MEANS, A SECONDARY CONDUIT, ALSO CONTAINING A THROTTLE CLOSING MEANS, LEADING FROM THE SAID MAIN FUEL INPUT MANIFOLD TO A SECONDARY INPUT PORT TO THE SAID COMBUSTION CHAMBER, A SECONDARY INTAKE VALVE CONTROLLING THE OPENING AND CLOSING OF THE SAID SECONDARY
Claim 2
Dependent Claim
98 words
IN NAN INTERNAL COMBUSTION ENGINE, A MAIN FUEL INPUT MANIFOLD CONTAINING A THROTTLE CLOSING MEANS, A PRIMARY CONDUIT CONNECTING THE SAID MAIN FUEL INPUT MANIFOLD WITH THE PRIMARY INPUT PORT TO THE COMBUSTION CHAMBER, A PRIMARY INTAKE VALVE CONTROLLING THE OPENING AND CLOSING OF THE SAID PRIMARY INPUT PORT, SAID PRIMARY INTAKE VALVE HAVING ITS OWN ACTUATING MEANS, A SECONDARY CONDUIT, ALSO CONTAINING A THROTTLE CLOSING MEANS, LEADING FROM THE SAID MAIN FUEL INPUT MANIFOLD TO A SECONDARY INPUT PORT TO THE SAID COMBUSTION CHAMBER, A SECONDARY INTAKE VALVE CONTROLLING THE OPENING AND CLOSING OF THE SAID SECONDARY
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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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |