US2546422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic phosphates as wear inhibitors for iron carbonyl
Assignee: Ethyl Corp
•
Filing: 1949-08-05
•
Granted: 1951-03-27
•
Expires: 1969-08-05
Abstract
No abstract record available.
Inventors
- 👤 Cross Howard Clinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:43
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/10; C10L1/00; C10L1/10; C10L10/08; C10L1/12; C10L1/1233; C10L1/1241; C10L1/14; C10L1/26; C10L1/2633; C10L1/2641
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN ANTIKNOCK MIXTURE CONSISTING ESSENTIALLY OF IRON CARBONYL AND A WEAR INHIBITOR IN AN AMOUNT SUFFICIENT TO REDUCE WEAR AND DEPOSITS ENGINE PARTS CAUSED BY IRON PENTACARBONYL, SAID WEAR INHIBITOR CONISTING ESSENTIALLY OF FROM 0.05 TO 0.25 GRAM OF PHOSPHORUS IN THE FORM OF AN ORGANIC PHOSPHATE TO 1 CUBIC CENTIMETER OF IRON PENTACARBONYL, SAID ORGANIC PHOSPHATE BEING SOLUBLE IN GASOLINE AND HAVING THE GENERAL FORMULA R3PO4 IN WHICH R IS SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, AND ALKENYL.
Claim 2
Dependent Claim
81 words
AN ANTIKNOCK MIXTURE CONSISTING ESSENTIALLY OF IRON CARBONYL AND A WEAR INHIBITOR IN AN AMOUNT SUFFICIENT TO REDUCE WEAR AND DEPOSITS ENGINE PARTS CAUSED BY IRON PENTACARBONYL, SAID WEAR INHIBITOR CONISTING ESSENTIALLY OF FROM 0.05 TO 0.25 GRAM OF PHOSPHORUS IN THE FORM OF AN ORGANIC PHOSPHATE TO 1 CUBIC CENTIMETER OF IRON PENTACARBONYL, SAID ORGANIC PHOSPHATE BEING SOLUBLE IN GASOLINE AND HAVING THE GENERAL FORMULA R3PO4 IN WHICH R IS SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, AND ALKENYL.
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) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |