US3310133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote operated oil drain
Assignee: Individual
•
Filing: 1964-05-20
•
Granted: 1967-03-21
•
Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Forrest D Eaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:12
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/04; F01M11/0408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A REMOTELY OPERATED OIL DRAIN DEVICE FOR ATTACHMENT TO AN INTERNAL COMBUSTION ENGINE HAVING A CRANKCASE AND A DRAINAGE PORT THEREFOR, SAID DEVICE COMPRISING A HOLLOW BODY, MEANS FOR CONNECTING SAID BODY TO SAID DRAINAGE PORT PROVIDING COMMUNICATION BETWEEN SAID BODY AND SAID CRANKCASE, SAID BODY HAVING A VALVE SEAT, A VALVE IN SAID BODY SELECTIVELY ENGAGEABLE WITH SAID VALVE SEAT, SAID BODY HAVING A DRAINAGE OPENING NORMALLY CLOSED BY SAID VALVE, OPERATING MEANS ON SAID BODY FOR MOVING SAID VALVE
Claim 2
Dependent Claim
81 words
A REMOTELY OPERATED OIL DRAIN DEVICE FOR ATTACHMENT TO AN INTERNAL COMBUSTION ENGINE HAVING A CRANKCASE AND A DRAINAGE PORT THEREFOR, SAID DEVICE COMPRISING A HOLLOW BODY, MEANS FOR CONNECTING SAID BODY TO SAID DRAINAGE PORT PROVIDING COMMUNICATION BETWEEN SAID BODY AND SAID CRANKCASE, SAID BODY HAVING A VALVE SEAT, A VALVE IN SAID BODY SELECTIVELY ENGAGEABLE WITH SAID VALVE SEAT, SAID BODY HAVING A DRAINAGE OPENING NORMALLY CLOSED BY SAID VALVE, OPERATING MEANS ON SAID BODY FOR MOVING SAID VALVE
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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |