US2808386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-water absorption high-impact polystyrene molding compositions
Assignee: Beazer East Inc
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Filing: 1952-04-11
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Granted: 1957-10-01
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Expires: 1972-04-11
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:48
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L9/00; C08L9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A MOLDING COMPOSITION COMPRISING 67 TO 95 PERCENT HIGH MOLECULAR WEIGHT POLYSTYRENE AND FROM APPROXIMATELY 5 TO 33 PERCENT OF AN ELASTOMER CONSISTING OF A COPOLYMERIZATE OF 71% BUTADIENE-1,3, 28.5% STYRENE AND 095% DIVINYLBENZENE, SAID ELASTOMER BEING FREE OF WATERSOLUBLE CONTAMINANTS.
Claim 2
Dependent Claim
41 words
A MOLDING COMPOSITION COMPRISING 67 TO 95 PERCENT HIGH MOLECULAR WEIGHT POLYSTYRENE AND FROM APPROXIMATELY 5 TO 33 PERCENT OF AN ELASTOMER CONSISTING OF A COPOLYMERIZATE OF 71% BUTADIENE-1,3, 28.5% STYRENE AND 095% DIVINYLBENZENE, SAID ELASTOMER BEING FREE OF WATERSOLUBLE CONTAMINANTS.
References Cited (Backward Citations)
US2574439A
Cited
GB644022A
Cited
US2474807A
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US2578518A
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US2624683A
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US2616864A
Cited
US2623863A
Cited
US2681898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |