US2679506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of dimethyl tin dichloride by direct reaction
Assignee: Primerica Inc
•
Filing: 1951-05-17
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Granted: 1954-05-25
•
Expires: 1971-05-17
Abstract
No abstract record available.
Inventors
- 👤 Rochow Eugene George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:29
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/2208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
THE PROCESS OF MAKING DIMETHYL TIN DICHLORIDE, WHICH COMPRISES REACTING METHYL CHLORIDE DIRECTLY WITH TIN CONTAINING A TRACE OF ZINC.
Claim 2
Dependent Claim
20 words
THE PROCESS OF MAKING DIMETHYL TIN DICHLORIDE, WHICH COMPRISES REACTING METHYL CHLORIDE DIRECTLY WITH TIN CONTAINING A TRACE OF ZINC.
References Cited (Backward Citations)
US2444270A
Cited
US2625559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |