Patent US3139873A successfully refreshed from Google Patents.
US3139873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust and water injector for internal combustion engines
Assignee: Individual
•
Filing: 1963-03-19
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Granted: 1964-07-07
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Expires: 1983-03-19
Abstract
No abstract record available.
Inventors
- 👤 Donald L Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:44
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/022; F02M25/025; F02M25/028; F02M25/0221; F02M25/0225; F02M26/00; F02M26/13; F02M26/36; F02M26/52; F02M26/55; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING A CARBURETOR WITH AN AIR INTAKE, AN INTAKE MANIFOLD AND AN EXHAUST PIPE, A WATER INJECTING DEVICE COMPRISING A VENTURI CONNECTED TO SAID AIR INTAKE, A WATER DISCHARGE NOZZLE HAVING ITS OUTLET IN SAID VENTURI, MEANS FOR DISCHARGING EXHAUST GASES FROM SAID EXHAUST PIPE INTO SAID VENTURI AND ACROSS SAID WATER DISCHARGE NOZZLE OUTLET, MEANS FOR SUPPLY WATER TO SAID WATER DISCHARGE
Claim 2
Dependent Claim
70 words
IN COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING A CARBURETOR WITH AN AIR INTAKE, AN INTAKE MANIFOLD AND AN EXHAUST PIPE, A WATER INJECTING DEVICE COMPRISING A VENTURI CONNECTED TO SAID AIR INTAKE, A WATER DISCHARGE NOZZLE HAVING ITS OUTLET IN SAID VENTURI, MEANS FOR DISCHARGING EXHAUST GASES FROM SAID EXHAUST PIPE INTO SAID VENTURI AND ACROSS SAID WATER DISCHARGE NOZZLE OUTLET, MEANS FOR SUPPLY WATER TO SAID WATER DISCHARGE
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |