Patent US3306703A successfully refreshed from Google Patents.
Patent US2628952A successfully refreshed from Google Patents.
US2628952A
Expired / Lapsed
US
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Butadiene hydrocarbon elastomers having improved light stability
Assignee: EIDP Inc
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Filing: 1948-07-27
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Granted: 1953-02-17
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Expires: 1968-07-27
Abstract
No abstract record available.
Inventors
- 👤 Paul A Sanders
- 👤 John R Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:12
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A BUTADIENE HYDROCARBON ELASTOMER OF THE CLASS CONSISTING OF HOMOPOLYMERS OF 1,3-BUTADIENE AND INTERPOLYMERS OF 1,3-BUTADIENE WITH VINYL COMPOUNDS, WHICH INTERPOLYMERS CONTAIN AT LEAST 50% OF THE BUTADIENE HYDROCARBON, WHICH ELASTOMER HAS INTIMATELY INCORPORATED THEREIN FROM 0.05 TO 10%, BASED ON THE WEIGHT OF THE ELASTOMER, OF A NICKEL SALT OF A DIALKYLDITHIOCARBAMIC ACID IN WHIH EACH OF THE ALKYL GROUPS CONTAINS NOT MORE THAN 8 CARBON ATOMS.
Claim 2
Dependent Claim
68 words
A BUTADIENE HYDROCARBON ELASTOMER OF THE CLASS CONSISTING OF HOMOPOLYMERS OF 1,3-BUTADIENE AND INTERPOLYMERS OF 1,3-BUTADIENE WITH VINYL COMPOUNDS, WHICH INTERPOLYMERS CONTAIN AT LEAST 50% OF THE BUTADIENE HYDROCARBON, WHICH ELASTOMER HAS INTIMATELY INCORPORATED THEREIN FROM 0.05 TO 10%, BASED ON THE WEIGHT OF THE ELASTOMER, OF A NICKEL SALT OF A DIALKYLDITHIOCARBAMIC ACID IN WHIH EACH OF THE ALKYL GROUPS CONTAINS NOT MORE THAN 8 CARBON ATOMS.
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) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |