US3296221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercapto-substituted thio-phosphites and phosphates and polysulfide polymers thereof
Assignee: Phillips Petroleum Co
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Filing: 1963-05-13
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Granted: 1967-01-03
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Expires: 1983-05-13
Abstract
No abstract record available.
Inventors
- 👤 Jr James W Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:33
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B45/105; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/201; C08; C08G; C08G75/00; C08G75/14; C08G79/00; C08G79/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
47 words
A METHOD FOR PREPARING A POLYSULFIDE POLYMER, WHICH COMPRISES REACTING A DIMERCAPTAN WITH A MERCAPTOSUBSTITUTED THIO-PHOSPHITE, HAVING THE STRUCTURE (HSRS)3P WHEREIN R IS AN ARGANO RADICAL HAVING 1 TO 20 CARBON ATOMS PER MOLECULE, SAID MERCAPTO-SUBSTITUTED THIO-PHOSPHITE HAVING BEEN PREPARED BY REACTING A DIMERCAPTAN WITH PHOSPHORUS TRICHLORIDE.
Claim 2
Independent Claim
47 words
A METHOD FOR PREPARING A POLYSULFIDE POLYMER, WHICH COMPRISES REACTING A DIMERCAPTAN WITH A MERCAPTOSUBSTITUTED THIO-PHOSPHITE, HAVING THE STRUCTURE (HSRS)3P WHEREIN R IS AN ARGANO RADICAL HAVING 1 TO 20 CARBON ATOMS PER MOLECULE, SAID MERCAPTO-SUBSTITUTED THIO-PHOSPHITE HAVING BEEN PREPARED BY REACTING A DIMERCAPTAN WITH PHOSPHORUS TRICHLORIDE.
Claim 3
Independent Claim
19 words
A METHOD FOR PREPARING A POLYSULFIDE POLYMER, WHICH COMPRISES REACTING A DIMERCAPTAN WITH A MERCAPTOSUBSTITUTED THIO-PHOSPHATE, HAVING THE STRUCTURE
Claim 4
Independent Claim
19 words
A METHOD FOR PREPARING A POLYSULFIDE POLYMER, WHICH COMPRISES REACTING A DIMERCAPTAN WITH A MERCAPTOSUBSTITUTED THIO-PHOSPHATE, HAVING THE STRUCTURE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |