US3705923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparation of organic polysulfides
Assignee: Monsanto Co
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Filing: 1969-11-28
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Granted: 1972-12-12
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Expires: 1989-11-28
Abstract
Abstract A PROCESS FOR THE PREPARATION OF ORGANIC POLYSULFIDES WHICH COMPRISES REACTING A COMPOUND CONTAINING ONE OR MORE-SH RADICALS WITH A SULFENAMIDE CHARACTERIXED BY THE PRESENCE OF A CARBONYL GROUP ADJACENT TO THE SULFENAMIDE NITROGEN.
Inventors
- 👤 Alfred Bay Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:49
CPC Classifications
C; C07; C07C; C07C321/00; C07C327/00; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/76; C07D277/78; C08; C08G; C08G75/00; C08G75/14; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372; C08K5/49; C08K5/5398
Claims Analysis
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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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |