US2962522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of vinyltin compounds
Assignee: Primerica Inc
•
Filing: 1956-11-28
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Granted: 1960-11-29
•
Expires: 1976-11-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Ambrose J Gibbons
- 👤 Sanders D Rosenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:15
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/2208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PROCESS FOR PRODUCING ORGANOTIN COMPOUNDS COMPRISING REACTING A HYDROCARBONTIN OXIDE SELECTED FROM THE CLASS CONSISTING OF DIHYDROCARBONTIN OXIDES AND BIS TRIHYDROCARBONTIN OXIDES, WITH VINYLMAGNESIUM CHLORIDE, TO PRODUCE A VINYLTIN COMPOUND SELECTED FROM THE CLASS CONSISTING OF DIVINYLDITHYDROCARBONTIN COMPOUNDS AND VINYLTRIHYDROCARBONTIN COMPOUNDS, RESPECTIVELY.
Claim 2
Dependent Claim
43 words
A PROCESS FOR PRODUCING ORGANOTIN COMPOUNDS COMPRISING REACTING A HYDROCARBONTIN OXIDE SELECTED FROM THE CLASS CONSISTING OF DIHYDROCARBONTIN OXIDES AND BIS TRIHYDROCARBONTIN OXIDES, WITH VINYLMAGNESIUM CHLORIDE, TO PRODUCE A VINYLTIN COMPOUND SELECTED FROM THE CLASS CONSISTING OF DIVINYLDITHYDROCARBONTIN COMPOUNDS AND VINYLTRIHYDROCARBONTIN COMPOUNDS, RESPECTIVELY.
References Cited (Backward Citations)
US2801258A
Cited
US2675399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |