Patent US2095513A successfully refreshed from Google Patents.
US3674525A
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US
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Plasticized sulfur compositions
Assignee: Phillips Petroleum Co
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Filing: 1970-02-25
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Granted: 1972-07-04
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Expires: 1990-02-25
Abstract
Abstract THE VISCOSITY OF PLASTICIZED SULFUR COMPOSITIONS COMPRISING ELEMENTAL SULFUR PLASTICIZED WITH AN ORGANIC SULFURPLASTICIZING AGENT IS REDUCED BY THE ADDITION OF A MODIFYING AMOUNT OF AN UNSATURATED ACID OR UNSATURATED ACID ANHYDRIDE TO THE PLASTICIZING AGENT PRIOR TO ITS USE FOR PLASTICIZING SULFUR.
Inventors
- 👤 Rector P Louthan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:23
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/0243
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |