Patent US5469670A successfully refreshed from Google Patents.
Patent US3262436A successfully refreshed from Google Patents.
US3262436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulating device
Assignee: Motors Liquidation Co
•
Filing: 1964-12-08
•
Granted: 1966-07-26
•
Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 Albert L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:19
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7752; Y10T137/7781; Y10T137/7793; Y10T137/7797; Y10T137/7798; Y10T137/7822
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
FOR USE IN A CRANKCASE VENTILATION SYSTEM OF AN INTERNAL COMBUSTION ENGINE OF THE TYPE HAVING A CRANKCASE AND AN INDUCTION SYSTEM: VALVE MEANS NORMALLY OPERABLE TO REGULATE THE FLOW OF CRANKCASE VAPORS FROM THE CRANKCASE TO THE INDUCTION SYSTEM; AND SUPPLEMENTARY MEANS RESPONSIVE TO PRESSURES IN THE ENGINE INDUCTION SYSTEM TO CLOSE THE VALVE MEANS DURING ENGINE STARTING AND TO PERMIT SAID FLOW REGULATION DURING NORMAL ENGINE OPERATION.
Claim 2
Dependent Claim
69 words
FOR USE IN A CRANKCASE VENTILATION SYSTEM OF AN INTERNAL COMBUSTION ENGINE OF THE TYPE HAVING A CRANKCASE AND AN INDUCTION SYSTEM: VALVE MEANS NORMALLY OPERABLE TO REGULATE THE FLOW OF CRANKCASE VAPORS FROM THE CRANKCASE TO THE INDUCTION SYSTEM; AND SUPPLEMENTARY MEANS RESPONSIVE TO PRESSURES IN THE ENGINE INDUCTION SYSTEM TO CLOSE THE VALVE MEANS DURING ENGINE STARTING AND TO PERMIT SAID FLOW REGULATION DURING NORMAL ENGINE OPERATION.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |