US2747560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon dioxide as an anti-knock agent
Assignee: Motors Liquidation Co
•
Filing: 1952-09-04
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Granted: 1956-05-29
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Expires: 1972-09-04
Abstract
No abstract record available.
Inventors
- 👤 Fred G Rounds
- 👤 Ralph E Schwind
- 👤 Lloyd L Withrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:21
CPC Classifications
C; C10; C10L; C10L1/00; F; F02; F02M; F02M25/00; F02M25/14; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A METHOD OF REDUCING THE SPEED OF COMBUSTION REACTIONS IN A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE WHICH COMPRISES INJECTING SUBSTANTIALLY PURE CARBON DIOXIDE INTO THE INTAKE MANIFOLD OF SAID ENGINE AT A PRESSURE OF ABOUT 1 TO 10 POUNDS PER SQUARE INCH AND AT A FLOW RATE EQUAL TO APPROXIMATELY 0.5% TO 2% OF THE FLOW RATE OF THE AIR INTAKE STREAM, SAID CARBON DIOXIDE BEING
Claim 2
Independent Claim
65 words
A METHOD OF REDUCING THE SPEED OF COMBUSTION REACTIONS IN A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE WHICH COMPRISES INJECTING SUBSTANTIALLY PURE CARBON DIOXIDE INTO THE INTAKE MANIFOLD OF SAID ENGINE AT A PRESSURE OF ABOUT 1 TO 10 POUNDS PER SQUARE INCH AND AT A FLOW RATE EQUAL TO APPROXIMATELY 0.5% TO 2% OF THE FLOW RATE OF THE AIR INTAKE STREAM, SAID CARBON DIOXIDE BEING
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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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |