US2955964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of cleaning out internal combustion engine carburetors
Assignee: Pennsylvania Refining Co
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Filing: 1957-05-10
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Granted: 1960-10-11
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Expires: 1977-05-10
Abstract
No abstract record available.
Inventors
- 👤 Dale T Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:56
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE METHOD OF CLEANING OUT AN INTERNAL COMBUSTION ENGINE CARBURETOR WITHOUT TAKING IT APART OR REMOVING IT FROM THE ENGINE, COMPRISING THE STEPS OF COMPLETELY DISCONNECTING FROM THE CARBURETOR THE GASOLINE SUPPLY ENGINE THEREFOR CLOSING THE DISCONNECTED GASOLINE SUPPLY LINE, DELIVERING TO THE CARBURETOR A COMBUSTIBLE GUM-DISSOLVING SOLVENT FLUID, AND OPERATING THE CARBURETOR AND THE ENGINE SOLELY ON SAID SOLVENT FLUID.
Claim 2
Independent Claim
61 words
THE METHOD OF CLEANING OUT AN INTERNAL COMBUSTION ENGINE CARBURETOR WITHOUT TAKING IT APART OR REMOVING IT FROM THE ENGINE, COMPRISING THE STEPS OF COMPLETELY DISCONNECTING FROM THE CARBURETOR THE GASOLINE SUPPLY ENGINE THEREFOR CLOSING THE DISCONNECTED GASOLINE SUPPLY LINE, DELIVERING TO THE CARBURETOR A COMBUSTIBLE GUM-DISSOLVING SOLVENT FLUID, AND OPERATING THE CARBURETOR AND THE ENGINE SOLELY ON SAID SOLVENT FLUID.
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) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |