US3140699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for removing sediment from rocker arm shafts in gasoline engines and a device for facilitating the same
Assignee: Individual
•
Filing: 1964-02-10
•
Granted: 1964-07-14
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Expires: 1984-02-10
Abstract
No abstract record available.
Inventors
- 👤 Jerry V Rassushin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:12
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD OF CLEANING A CLOSED TUBULAR ROCKER ARM SHAFT IN AN ENGINE HAVING AN OIL PUMP AND AN OIL PASSAGE FROM SAID PUMP TO SAID SHAFT, SAID METHOD COMPRISING THE FOLLOWING STEPS: OPENING ONE END OF THE SHAFT; REPLACING ENGINE OIL WITH A NEW OIL; STARTING THE ENGINE AND RAISING THE OIL PRESSURE TO APPROXIMATELY 30 POUNDS;
Claim 2
Independent Claim
58 words
A METHOD OF CLEANING A CLOSED TUBULAR ROCKER ARM SHAFT IN AN ENGINE HAVING AN OIL PUMP AND AN OIL PASSAGE FROM SAID PUMP TO SAID SHAFT, SAID METHOD COMPRISING THE FOLLOWING STEPS: OPENING ONE END OF THE SHAFT; REPLACING ENGINE OIL WITH A NEW OIL; STARTING THE ENGINE AND RAISING THE OIL PRESSURE TO APPROXIMATELY 30 POUNDS;
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |