US2953587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized cyclopentadienyl manganese tricarbonyls
Assignee: Ethyl Corp
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Filing: 1958-12-18
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Granted: 1960-09-20
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Expires: 1978-12-18
Abstract
No abstract record available.
Inventors
- 👤 Clinton Ernest
- 👤 John G Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:41
CPC Classifications
C; C07; C07F; C07F13/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2406; C10L1/30; C10L1/305; C10L1/306; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A CYCLOPENTADIENYL MANGANESE TRICARBONYL ANTIKNOCK COMPOUND WHOSE CYCLOPENTADIENYL GROUP IS A CYCLOPENTADIENYL HYDROCARBON RADICAL CONTAINING K TO 17 CARBON ATOMS, AND COMPOUND BEING STABILIZED AGAINST SUNLIGHTINDUCED OXIDATIVE DETERIORATION BY THE PRESENCE THEREIN OF FROM ABOUT 0.02 TO ABOUT 0.5 MOL OF A HYDROCARBYL ESTER OF THIOGLYCOLIC ACID PER MOL OF SAID COMPOUND.
Claim 2
Dependent Claim
52 words
A CYCLOPENTADIENYL MANGANESE TRICARBONYL ANTIKNOCK COMPOUND WHOSE CYCLOPENTADIENYL GROUP IS A CYCLOPENTADIENYL HYDROCARBON RADICAL CONTAINING K TO 17 CARBON ATOMS, AND COMPOUND BEING STABILIZED AGAINST SUNLIGHTINDUCED OXIDATIVE DETERIORATION BY THE PRESENCE THEREIN OF FROM ABOUT 0.02 TO ABOUT 0.5 MOL OF A HYDROCARBYL ESTER OF THIOGLYCOLIC ACID PER MOL OF SAID COMPOUND.
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |