US3192783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine
Assignee: Individual
•
Filing: 1962-09-28
•
Granted: 1965-07-06
•
Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 Robert C Cruzan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:57
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/28; F01; F01B; F01B3/00; F01B3/04; F01B3/06; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2204; F02B75/32; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1527; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19744; Y10T74/19781
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
58 words
IN AN INTERNAL COMBINATION ENGINE FOR THE TYPE HAVING ITS CYLINDER, PISTON AND SHAFT CONCENTRICALLY MOUNTED, LOW FRICTION CONVERTING MEANS COMPRISING: A CLOSED CYLINDER HAVING A LONGITUDINAL AXIS; A LONGITUDINALLY ORIENTED SHAFT ROTATABLY MOUNTED AT EACH END OF SAID CYLINDER; A PISTON HAVING CYLINDRICAL ENDS DISPOSED IN SAID CYLINDER WITH SAID SHAFT EXTENDING THROUGH THE ENDS THEREOF; AND
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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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |