US3557251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising a vinyl chloride resin and graft polymer
Assignee: Japanese Geon Co Ltd
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Filing: 1967-12-27
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Granted: 1971-01-19
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Expires: 1987-12-27
Abstract
Abstract VINYL CHLORIDE RESIN COMPOSITIONS COMPRISING A VINYL CHLORIDE RESIN (I) SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE HOMOPOLYMERS AND VINYL CHLORIDE COPOLYMERS CONTAINING AT LEAST 70% BY WEIGHT OF VINYL CHLORIDE, AND A GRAFT COPOLYMER (II) OBTAINED BY GRAFT COPOLYMERIZING ACRYLONITRILE AND AN AROMATIC VINYL AND AN ACRYLIC ACID ALKYL ESTER TO AN ACRYLONITRILE-AROMATIC VINYL-BUTADIENE TRUCK COPOLYMERS.
Inventors
- 👤 Akira Tanaka
- 👤 Koji Kato
- 👤 Shingo Futamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:16
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08F; C08F279/00; C08F279/02; C08L55/00; C08L55/02; C08L51/00; C08L51/04; Y; Y10; Y10S; Y10S525/00; Y10S525/932
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |