US2885314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of aluminum ethyl compounds
Assignee: Ethyl Corp
•
Filing: 1957-03-28
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Granted: 1959-05-05
•
Expires: 1977-03-28
Abstract
No abstract record available.
Inventors
- 👤 Horace E Redman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:30
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS OF ACTIVATING FOR THE PURPOSE OF PREPARING ALUMINUM ETHYL COMPOUNDS, THE PROCESS BEING CHARACTERIZED BY HEATING A MIXTURE CONSISTING ESSENTIALLY OF ALUMINUM AND AN ALUMINUM ETHYL COMPOUND IN WHICH THE ETHYL IS DIRECTLY LINKED TO THE ALUMINUM AND ANY ALUMINUM VALENCES NOT LINKED TO AN ETHYL ARE LINKED TO HYDROGEN, THE HEATING BEING AT A TEMPERATURE OF FROM ABOUT 100 TO 140*C. FOR A TIME SUFFICIENT TO RENDER THE ALUMINUM ACTIVE.
Claim 2
Dependent Claim
73 words
A PROCESS OF ACTIVATING FOR THE PURPOSE OF PREPARING ALUMINUM ETHYL COMPOUNDS, THE PROCESS BEING CHARACTERIZED BY HEATING A MIXTURE CONSISTING ESSENTIALLY OF ALUMINUM AND AN ALUMINUM ETHYL COMPOUND IN WHICH THE ETHYL IS DIRECTLY LINKED TO THE ALUMINUM AND ANY ALUMINUM VALENCES NOT LINKED TO AN ETHYL ARE LINKED TO HYDROGEN, THE HEATING BEING AT A TEMPERATURE OF FROM ABOUT 100 TO 140*C. FOR A TIME SUFFICIENT TO RENDER THE ALUMINUM ACTIVE.
References Cited (Backward Citations)
US2691668A
Cited
US2787626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |