US2553651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of cyclic dimers of diolefins as plasticizers for oil resistant elastomers
Assignee: Standard Oil Development Co
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Filing: 1948-06-16
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Granted: 1951-05-22
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Expires: 1968-06-16
Abstract
No abstract record available.
Inventors
- 👤 Albert M Gessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:57
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/02; C08L23/00; C08L23/02; C08L23/18; C08L23/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A VULCANIZABLE COMPOSITION OF MATTER COMPRISING 100 PARTS OF SOLID, RUBBER-LIKE EMULSION COPOLYMER OOF 85 TO 60% OF BUTADIENE AND 15 TO 40% OF ACRYLONITRILE AND, AS A SOFTENING AGENT THEREFOR, 5 TO 20 PARTS OF VISCOUS POLYMERIZED VINYL CYCLOHEXENE HAVING A STAUDINGER MOLECULAR WEIGHT BETWEEN 10,000 AND 20,000.
Claim 2
Dependent Claim
49 words
A VULCANIZABLE COMPOSITION OF MATTER COMPRISING 100 PARTS OF SOLID, RUBBER-LIKE EMULSION COPOLYMER OOF 85 TO 60% OF BUTADIENE AND 15 TO 40% OF ACRYLONITRILE AND, AS A SOFTENING AGENT THEREFOR, 5 TO 20 PARTS OF VISCOUS POLYMERIZED VINYL CYCLOHEXENE HAVING A STAUDINGER MOLECULAR WEIGHT BETWEEN 10,000 AND 20,000.
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 |