Patent US2660592A successfully refreshed from Google Patents.
US2660592A
Expired / Lapsed
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Stable lead alkyl compositions and a method for preparing the same
Assignee: Ethyl Corp
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Filing: 1952-03-18
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Granted: 1953-11-24
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Expires: 1972-03-18
Abstract
No abstract record available.
Inventors
- 👤 Calingaert George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:59
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A METHOD OF INHIBITING THE DECOMPOSITION OF AN ALKYLLEAD COMPOUND COMPRISING INCORPORATING THEREWITH A THERMAL STABILIZER SELECTED FROM THE CLASS CONSISTING OF GLYCERYL MONOSTERATE, GLYCOL DILAURATE, 2 - METHYL - 2,4 - PENTANEDIOL, ETHYLENE BROMOHYDRIN, FURFURYL ALCOHOL, ETHYNYLCYCLOHEXANOL, TIGLIC ALCOHOL, A-TERPINEOL, CROTONALDEHEXANEDIOL AND FURFURAL.
Claim 2
Independent Claim
44 words
A METHOD OF INHIBITING THE DECOMPOSITION OF AN ALKYLLEAD COMPOUND COMPRISING INCORPORATING THEREWITH A THERMAL STABILIZER SELECTED FROM THE CLASS CONSISTING OF GLYCERYL MONOSTERATE, GLYCOL DILAURATE, 2 - METHYL - 2,4 - PENTANEDIOL, ETHYLENE BROMOHYDRIN, FURFURYL ALCOHOL, ETHYNYLCYCLOHEXANOL, TIGLIC ALCOHOL, A-TERPINEOL, CROTONALDEHEXANEDIOL AND FURFURAL.
References Cited (Backward Citations)
US2432321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |