US3246639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smog control device
Assignee: Individual
•
Filing: 1964-10-09
•
Granted: 1966-04-19
•
Expires: 1984-10-09
Abstract
No abstract record available.
Inventors
- 👤 John J Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:50
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/04; F01M13/02; F01M13/021; F01M13/022; Y; Y10; Y10S; Y10S55/00; Y10S55/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING A CRANKCASE, A CARBURATOR, AND A CARBURATOR AIR FILTER, A CRANKCASE VENTILATING, FLUID FILTERING AND RECIRCULATING DEVICE COMPRISING A VACUUM PUMP MOUNTED IN CLOSE PROXIMITY TO SAID ENGINE AND DRIVEN BY SAID ENGINE; FIRST CONDUIT MEANS CONNECTING THE INTAKE PORT OF SAID VACUUM PUMP TO THE INTERIOR OF SAID CRANKCASE TO PERMIT SAID VACUUM PUMP TO MAINTAIN A PARTIAL VACUUM IN SAID CRANKCASE; A TRAP ADAPTED FOR FILTERING FLUID AND CONDENSING VAPOR MOUNTED IN CLOSE PROXIMITY TO SAID ENGINE; SECOND CONDUIT MEANS CONNECTING THE EXHAUST PORT OF SAID VACUUM PUMP TO THE INTERIOR OF SAID TRAP; THIRD CONDUIT MEANS CONNECTING THE INTERIOR OF SAID TRAP TO THE INTERIOR OF SAID CARBURATOR AIR FILTER; FOURTH CONDUIT MEANS CONNECTING THE INTERIOR OF SAID TRAP TO THE INTERIOR OF SAID CRANKCASE TO PERMIT THE PASSAGE OF LIQUID OIL FROM SAID TRAP TO SAID CRANKCASE.
Claim 2
Dependent Claim
149 words
IN COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING A CRANKCASE, A CARBURATOR, AND A CARBURATOR AIR FILTER, A CRANKCASE VENTILATING, FLUID FILTERING AND RECIRCULATING DEVICE COMPRISING A VACUUM PUMP MOUNTED IN CLOSE PROXIMITY TO SAID ENGINE AND DRIVEN BY SAID ENGINE; FIRST CONDUIT MEANS CONNECTING THE INTAKE PORT OF SAID VACUUM PUMP TO THE INTERIOR OF SAID CRANKCASE TO PERMIT SAID VACUUM PUMP TO MAINTAIN A PARTIAL VACUUM IN SAID CRANKCASE; A TRAP ADAPTED FOR FILTERING FLUID AND CONDENSING VAPOR MOUNTED IN CLOSE PROXIMITY TO SAID ENGINE; SECOND CONDUIT MEANS CONNECTING THE EXHAUST PORT OF SAID VACUUM PUMP TO THE INTERIOR OF SAID TRAP; THIRD CONDUIT MEANS CONNECTING THE INTERIOR OF SAID TRAP TO THE INTERIOR OF SAID CARBURATOR AIR FILTER; FOURTH CONDUIT MEANS CONNECTING THE INTERIOR OF SAID TRAP TO THE INTERIOR OF SAID CRANKCASE TO PERMIT THE PASSAGE OF LIQUID OIL FROM SAID TRAP TO SAID CRANKCASE.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |