US3254636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Individual
•
Filing: 1963-12-04
•
Granted: 1966-06-07
•
Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Nile E Faust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:50
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/28; F02B41/00; F02B41/02; F02B41/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN AN INTERNAL COMBUSTION ENGINE, A CYLINDER WITH A MAIN PISTON AND AN AUXIALLY PISTON RECIPROCATIVE IN SAID CYLINDER FROM OPPOSITE ENDS THEREOF, SAID MAIN PISTON BEING CONNECTED TO A CRANKSHAFT, MEANS FOR CUASING IGNITION OF A COMBUSTIBLE FUEL IN SAID CYLINDER SUBSTANTIALLY WITHIN THE RANGER OF 15 DEGREES TO 1 DEGREE BEFORE THE TOP DEAD CENTER POSITION OF SAID MAIN PISTON, AND MEANS FOR CAUSING SAID AUXILIARY PISTON TO MOVE IN THE SAME DIRECTION WITH RESPECT TO SAID CYLINDER ENDS AS SAID MAIN PISTON
Claim 2
Dependent Claim
85 words
IN AN INTERNAL COMBUSTION ENGINE, A CYLINDER WITH A MAIN PISTON AND AN AUXIALLY PISTON RECIPROCATIVE IN SAID CYLINDER FROM OPPOSITE ENDS THEREOF, SAID MAIN PISTON BEING CONNECTED TO A CRANKSHAFT, MEANS FOR CUASING IGNITION OF A COMBUSTIBLE FUEL IN SAID CYLINDER SUBSTANTIALLY WITHIN THE RANGER OF 15 DEGREES TO 1 DEGREE BEFORE THE TOP DEAD CENTER POSITION OF SAID MAIN PISTON, AND MEANS FOR CAUSING SAID AUXILIARY PISTON TO MOVE IN THE SAME DIRECTION WITH RESPECT TO SAID CYLINDER ENDS AS SAID MAIN PISTON
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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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |