US3057894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of organometallic compounds
Assignee: Ethyl Corp
•
Filing: 1959-01-05
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Granted: 1962-10-09
•
Expires: 1979-01-05
Abstract
No abstract record available.
Inventors
- 👤 Gene C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:59
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C07; C07F; C07F17/00; C07F3/00; C07F3/02; C07F3/06; C07F5/00; C07F5/02; C07F5/027; C07F5/06; C07F5/061; C07F5/062; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/0825; C07F7/0827; C07F7/22; C07F7/2208; C07F7/24; C07F9/00; C07F9/90; C07F9/92; C08J2375/00; C08J2375/04; C08J2483/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A PROCESS FOR THE MANFACTURE OF TETRAETHYLTIN WHICH COMPRISES REACTING SODIUM TETRAETHYLALUMINUM WITH FINELY DIVIDED TIN AND ETHYL CHLORIDE AT BETWEEN ABOUT 25 TO 150* C.
Claim 2
Dependent Claim
26 words
A PROCESS FOR THE MANFACTURE OF TETRAETHYLTIN WHICH COMPRISES REACTING SODIUM TETRAETHYLALUMINUM WITH FINELY DIVIDED TIN AND ETHYL CHLORIDE AT BETWEEN ABOUT 25 TO 150* C.
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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |