US2933480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur vulcanizable unsaturated elastomeric interpolymers of monoolefins and diolefins
Assignee: EIDP Inc
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Filing: 1959-06-17
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Granted: 1960-04-19
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Expires: 1979-06-17
Abstract
No abstract record available.
Inventors
- 👤 William F Gresham
- 👤 Hunt Madison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:14
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/16; C08F210/18; Y; Y10; Y10S; Y10S152/00; Y10S152/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
SULFUR-VULCANIZABLE UNSATURATED RUBBER-LIKE INTERPOLYMERS OF AT LEAST ONE TERMINALLY UNSATURATED STRAIGHT CHAIN MONOOLEFIN CONTAINING FROM 2 TO 18 CARBON ATOMS, AND AN ALIPHATIC OPEN CHAIN DIOLEFIN CONTAINING FROM 5 TO 22 CARBON ATOMS IN WHICH THE DOUBLE BONDS ARE SEPARATED BY MORE THAN 2 CARBON ATOMS AND IN WHICH AT LEAST ONE DOUBLE BOND IS TERMINALLY LOCATED, THE DIOLEFIN COMPRISING FROM ABOUT 1 TO ABOUT 40 MOL PERCENT OF THE INTERPOLYMER, SAID INTERPOLYMERS HAVING AN IODINE NUMBER OF FROM 3 TO 50 AND AN INTRINSIC VISCOSITY IN BENZENE AT 25*C. OF FROM 0.5 TO 5.0.
Claim 2
Dependent Claim
95 words
SULFUR-VULCANIZABLE UNSATURATED RUBBER-LIKE INTERPOLYMERS OF AT LEAST ONE TERMINALLY UNSATURATED STRAIGHT CHAIN MONOOLEFIN CONTAINING FROM 2 TO 18 CARBON ATOMS, AND AN ALIPHATIC OPEN CHAIN DIOLEFIN CONTAINING FROM 5 TO 22 CARBON ATOMS IN WHICH THE DOUBLE BONDS ARE SEPARATED BY MORE THAN 2 CARBON ATOMS AND IN WHICH AT LEAST ONE DOUBLE BOND IS TERMINALLY LOCATED, THE DIOLEFIN COMPRISING FROM ABOUT 1 TO ABOUT 40 MOL PERCENT OF THE INTERPOLYMER, SAID INTERPOLYMERS HAVING AN IODINE NUMBER OF FROM 3 TO 50 AND AN INTRINSIC VISCOSITY IN BENZENE AT 25*C. OF FROM 0.5 TO 5.0.
References Cited (Backward Citations)
US2039364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |