Patent US3792115A successfully refreshed from Google Patents.
US3792115A
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Thermoplastic resin composition comprising polycarbonates and polyarylene esters
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1972-03-08
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Granted: 1974-02-12
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Expires: 1992-03-08
Abstract
Abstract A THERMOPLASTIC RESIN COMPOSITION OF POLYCARBONATE IMPROVED IN IMPACT STRENGTH AND HEAT DEFORMATION RESISTANCE WHICH COMPRISES 1 TO 99% BY WEIGHT OF POLYCARBONATE RESIN AND 99 TO 1% BY WEIGHT OF POLYARYLENE ESTER ON THE BASIS OF THE TOTAL WEIGHT OF THE COMPOSITION.
Inventors
- 👤 H Kishikawa
- 👤 K Yasuno
- 👤 S Kitamura
- 👤 N Toyota
- 👤 K Ueno
- 👤 H Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:38
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L67/03; C08L69/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |