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US2765292A
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Stabilization of synthetic rubber-modified polystyrenes with hydroquinone monoethersand dithiocarbamic acid salts
Assignee: Union Carbide Corp
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Filing: 1953-04-15
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Granted: 1956-10-02
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Expires: 1973-04-15
Abstract
No abstract record available.
Inventors
- 👤 Groff Frazier
- 👤 Rogers K Dearing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:57
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/36; C08K5/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
MOLDABLE COMPOSITION RESISTANT TO HEAT AND OXYGEN COMPRISING POLYSTYRENE MODIFIED WITH A MINOR AMOUNT OF A BUTADIENE SYNTHETIC RUBBER, SAID MODIFIED POLYSTRYRENE CONTAINING STABILIZING AMOUNTS OF A HYDROQUINONE MONOETHER HAVING THE FORMULA
Claim 2
Dependent Claim
32 words
MOLDABLE COMPOSITION RESISTANT TO HEAT AND OXYGEN COMPRISING POLYSTYRENE MODIFIED WITH A MINOR AMOUNT OF A BUTADIENE SYNTHETIC RUBBER, SAID MODIFIED POLYSTRYRENE CONTAINING STABILIZING AMOUNTS OF A HYDROQUINONE MONOETHER HAVING THE FORMULA
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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |