US2554182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of vulcanizing "gr-s" rubber
Assignee: CHEMICAL DEV CO
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Filing: 1947-04-29
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Granted: 1951-05-22
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Expires: 1967-04-29
Abstract
No abstract record available.
Inventors
- 👤 Arvel O Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:14
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE PROCESS WHICH COMPRISES VULCANIZING A VULCANIZABLE MIXTURE CONTAINING A RUBBERY AQUEOUS EMULSION COPOLYMER OF STYRENE AND BUTADIENE 1,3,SULFUR AS A VULCANIZING AGENT, AND A HEAVY METAL SALT OF MORPHOLYL DITHIONIC ACID, .05 TO 1.5 PARTS OF THE METAL SALT BEING PER 100 PARTS OF THE RUBBER COPOLYMER.
Claim 2
Dependent Claim
48 words
THE PROCESS WHICH COMPRISES VULCANIZING A VULCANIZABLE MIXTURE CONTAINING A RUBBERY AQUEOUS EMULSION COPOLYMER OF STYRENE AND BUTADIENE 1,3,SULFUR AS A VULCANIZING AGENT, AND A HEAVY METAL SALT OF MORPHOLYL DITHIONIC ACID, .05 TO 1.5 PARTS OF THE METAL SALT BEING PER 100 PARTS OF THE RUBBER COPOLYMER.
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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |