Patent US4084553A successfully refreshed from Google Patents.
Patent US2599544A successfully refreshed from Google Patents.
US2599544A
Expired / Lapsed
US
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Stabilization of unsaturated organic material-sulfur dioxide resins with elemental sulfur or inorganic sulfides
Assignee: Phillips Petroleum Co
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Filing: 1951-01-31
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Granted: 1952-06-10
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Expires: 1971-01-31
Abstract
No abstract record available.
Inventors
- 👤 Willie W Crouch
- 👤 John F Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:44
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20; C08G75/205; C08G75/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
IN THE PROCESS OF PRODUCING A STABLE OLEFINSULFUR DIOXIDE RESIN THE STEP WHICH COMPRISES ADMIXING A MATERIAL SELECTED FROM A GROUP CONSISTING OF ELEMENTAL SULFUR AND AN INORGANIC SULFIDE WITH SAID RESIN DURING ITS PREPARATION.
Claim 2
Dependent Claim
35 words
IN THE PROCESS OF PRODUCING A STABLE OLEFINSULFUR DIOXIDE RESIN THE STEP WHICH COMPRISES ADMIXING A MATERIAL SELECTED FROM A GROUP CONSISTING OF ELEMENTAL SULFUR AND AN INORGANIC SULFIDE WITH SAID RESIN DURING ITS PREPARATION.
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) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |