Patent US2802808A successfully refreshed from Google Patents.
US2802808A
Expired / Lapsed
US
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Compositions of a styrene-acrylonitrile resin, a graft of styrene and acrylonitrile upon a diene rubber and a diene rubber
Assignee: Bridgestone Firestone Inc
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Filing: 1953-07-31
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Granted: 1957-08-13
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Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 Robert A Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:20
CPC Classifications
C; C08; C08L; C08L9/00; C08F; C08F279/00; C08F279/02; C08F279/04; C08L55/00; C08L55/02; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A STRONG, IMPACT RESISTANT, POLYCOMPONENT POLYMERIC COMPOSITION COMPRISING:
Claim 2
Dependent Claim
8 words
A STRONG, IMPACT RESISTANT, POLYCOMPONENT POLYMERIC COMPOSITION COMPRISING:
References Cited (Backward Citations)
US2550139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |