Patent US2162747A successfully refreshed from Google Patents.
Patent US3157171A successfully refreshed from Google Patents.
US3157171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline economizer
Assignee: Individual
•
Filing: 1963-01-31
•
Granted: 1964-11-17
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Expires: 1983-01-31
Abstract
No abstract record available.
Inventors
- 👤 Chester F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:05
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6579; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/783
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN COMBINATION, AN APPARATUS OR DEVICE FOR INTERNAL COMBUSTION ENGINES AND A NEW AND IMPROVED FUEL SUPPLY SYSTEM THEREFOR COMPRISING A MIXING CHAMBER MIXING IN TWO STAGES CRANK CASE VAPORS AND FUMES WITH GASOLINE VAPORS FROM THE CARBURETOR, A CRANK CASE VAPOR COLLECTING TUBE, A TUBE FOR COLLECTING GASOLINE VAPORS FROM THE CARBURETOR, ADJUSTABLE VALVES TO CONTROL INTAKE OF CRANK CASE VAPORS AND GASOLINE FUMES RESPECTIVELY AND INDEPENDENTLY, A FILTER CHAMBER COMPRISING FINE FILTER MATERIAL
Claim 2
Dependent Claim
75 words
IN COMBINATION, AN APPARATUS OR DEVICE FOR INTERNAL COMBUSTION ENGINES AND A NEW AND IMPROVED FUEL SUPPLY SYSTEM THEREFOR COMPRISING A MIXING CHAMBER MIXING IN TWO STAGES CRANK CASE VAPORS AND FUMES WITH GASOLINE VAPORS FROM THE CARBURETOR, A CRANK CASE VAPOR COLLECTING TUBE, A TUBE FOR COLLECTING GASOLINE VAPORS FROM THE CARBURETOR, ADJUSTABLE VALVES TO CONTROL INTAKE OF CRANK CASE VAPORS AND GASOLINE FUMES RESPECTIVELY AND INDEPENDENTLY, A FILTER CHAMBER COMPRISING FINE FILTER MATERIAL
References Cited (Backward Citations)
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Cited
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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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |