Patent US2885415A successfully refreshed from Google Patents.
US2885415A
Expired / Lapsed
US
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Organotin compounds and process of preparation
Assignee: Primerica Inc
•
Filing: 1953-01-22
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Granted: 1959-05-05
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Expires: 1973-01-22
Abstract
No abstract record available.
Inventors
- 👤 Hugh E Ramsden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:11
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/226
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
16 words
ORGANOTIN DERIVATIVES OF MERCAPTOALCOHOLS HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF R3SN(SR''OH), R3SN-S-R''O-SNR3 AND
Claim 2
Dependent Claim
16 words
ORGANOTIN DERIVATIVES OF MERCAPTOALCOHOLS HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF R3SN(SR''OH), R3SN-S-R''O-SNR3 AND
Claim 3
Dependent Claim
30 words
A METHOD OF PREPARIN A COMPOUND OF CLAIM 1 WHICH COMPRISES REACTING A HYDROCARBONTIN HALIDE SELECTED FROM THE GROUP CONSISTING OF MONOHALIDES AND DIHALIDES WITH A MERCAPTO ALCOHOL OF FOMULA
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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 |