Patent US3631082A successfully refreshed from Google Patents.
US3631082A
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US
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Novel process for preparing sulfur-containing organotin compounds
Assignee: Nitto Kasei Co Ltd
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Filing: 1969-09-15
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Granted: 1971-12-28
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Expires: 1989-09-15
Abstract
Abstract SULFUR-CONTAINING ORGANOTIN COMPOUNDS OF THE FORMULA R2SN(S(CH2)NCOOR'')2 WHEREIN R IS A 1-18 C HYDROCARBON RADICAL, R'' IS A 1-18 C HYDROCARBON RADICAL, OR AN ALKOXYALKYL, RADICAL, AND N IS 1 OR 2 MAY BE PREPARED BY THE REACTION OF A DI-SUBSTITUTED ORGANOTIN OXIDE WITH A MERCAPTO ACID ESTER IN THE PRESENCE OF A DEHYDRATING AGENT.
Inventors
- 👤 Kenichi Kino
- 👤 Takashi Matsuzaki
- 👤 Hiroshi Ichikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:14
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |