US3792124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of certain block copolymers and neutralized copolymers of ethylene and an acrylic acid
Assignee: Shell USA Inc
•
Filing: 1972-02-24
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Granted: 1974-02-12
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Expires: 1992-02-24
Abstract
Abstract CLEAR POLYMERIC BLENDS WITH IMPROVED ADHESION ARE OBTAINED FROM A COMBINATION OF SELECTIVELY HYDROGENATED BLOCK COPOLYMERS AND IONOMERS COMPRISING NEUTRALIZED COPOLYMERS OF ETHYLENE AND A-B UNSATURATED ACIDS.
Inventors
- 👤 S Davison
- 👤 M Wales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02; C09; C09D; C09D123/00; C09D123/02; C09D123/04; C09D123/08; Y; Y10; Y10S; Y10S525/00; Y10S525/919; Y10S525/932
Claims Analysis
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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 |