US3813358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonate molding composition comprising an aromatic polycarbonate graft copolymer and a modifier
Assignee: General Electric Co
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Filing: 1972-01-03
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Granted: 1974-05-28
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Expires: 1992-01-03
Abstract
Abstract AN IMPROVED POLYCARBONATE MOLDING COMPOSITION HAVING IN ADMIXTURE THEREWITH MINOR AMOUNTS OF A GRAFT COPOLYMER OF A POLYBUTADIENE AND A MIXTURE OF AN ALKENYL CYANIDE AND A VINYL AROMATIC HYDROCARBON.
Inventors
- 👤 Connell W O
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:28
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; 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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |