US3130177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of polycarbonates with polybutadiene, styrene, acrylonitrile graft copolymers
Assignee: GE Chemicals Inc
•
Filing: 1961-03-24
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Granted: 1964-04-21
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Grabowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:00
CPC Classifications
C; C08; C08L; C08L55/00; C08L55/02; C08L69/00; Y; Y10; Y10S; Y10S260/00; Y10S260/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOSITION COMPRISING A BLEND OF (A) THE POLYCARBONATE OF A DI-(MONO-HYDROXYPHENYL)-SUBSTITUTED ALIPHATIC HYDROCARBON AND (B) A GRAFT COPOLYMER OF (1) POLYBUFADIENE AND (2) A MIXTURE OF ALKENYL CYANIDE AND A VINYL AROMATIC HYDROCARBON.
Claim 2
Dependent Claim
34 words
A COMPOSITION COMPRISING A BLEND OF (A) THE POLYCARBONATE OF A DI-(MONO-HYDROXYPHENYL)-SUBSTITUTED ALIPHATIC HYDROCARBON AND (B) A GRAFT COPOLYMER OF (1) POLYBUFADIENE AND (2) A MIXTURE OF ALKENYL CYANIDE AND A VINYL AROMATIC HYDROCARBON.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |