Patent US2737932A successfully refreshed from Google Patents.
US2737932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
thomas
Assignee: —
•
Filing: —
•
Granted: 1956-03-13
•
Expires: 1973-03-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:19
CPC Classifications
F; F02; F02B; F02B1/00; F02B1/02; F02B1/04; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE METHOD OF SUPPRESSING PREIGNITION IN SPARK IGNITION INTERNAL COMBUSTION ENGINES WHICH COMPRISES: DECOMPOSING IN THE COMBUSTION CHAMBERS OF SAID ENGINE ORGANO-METALLIC COMPOUNDS WHICH FORM DECOMPOSITION PRODUCTS WHICH CATALYZE COMBUSTION CHAMBER DEPOSIT OXIDATION AT LOWER TEMPERATURES THAN LEAD ANTI-KNOCK AGENT DECOMPOSITION PRODUCTS DO, AND SUBSEQUENTLY DURING ENGINE OPERATION INJECTING AIR INTO THE COMBUSTION CHAMBER IN ADDITION TO THE AIR NORMALLY SUPPLIED TO THE COMBUSTION CHAMBER IN THE AIR-FUEL MIXTURE, THEREBY TO OXIDIZE COMBUSTIBLE MATERIAL IN COMBUSTION CHAMBER DEPOSITS AND TO RENDER SUCH DEPOSITS SUBSTANTIALLY INCAPABLE OF SERVING AS A SOURCE OF UNCONTROLLED IGNITION.
Claim 2
Independent Claim
93 words
THE METHOD OF SUPPRESSING PREIGNITION IN SPARK IGNITION INTERNAL COMBUSTION ENGINES WHICH COMPRISES: DECOMPOSING IN THE COMBUSTION CHAMBERS OF SAID ENGINE ORGANO-METALLIC COMPOUNDS WHICH FORM DECOMPOSITION PRODUCTS WHICH CATALYZE COMBUSTION CHAMBER DEPOSIT OXIDATION AT LOWER TEMPERATURES THAN LEAD ANTI-KNOCK AGENT DECOMPOSITION PRODUCTS DO, AND SUBSEQUENTLY DURING ENGINE OPERATION INJECTING AIR INTO THE COMBUSTION CHAMBER IN ADDITION TO THE AIR NORMALLY SUPPLIED TO THE COMBUSTION CHAMBER IN THE AIR-FUEL MIXTURE, THEREBY TO OXIDIZE COMBUSTIBLE MATERIAL IN COMBUSTION CHAMBER DEPOSITS AND TO RENDER SUCH DEPOSITS SUBSTANTIALLY INCAPABLE OF SERVING AS A SOURCE OF UNCONTROLLED IGNITION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |