US3639508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic blends of polyarylene oxide and block polymer and method for making them
Assignee: General Electric Co
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Filing: 1969-01-03
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Granted: 1972-02-01
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Expires: 1989-01-03
Abstract
Abstract LIQUID PHASE BLENDING OF A POLYARYLENE OXIDE AND A MONOBINYL AROMATIC BLOCK POLYMER PROVIDES, FOR THE PRODUCTION OF VARIETY OF THEEMOPLASTIC MATERIALS HAVING IMPROVED HEAT DISTORTION.
Inventors
- 👤 Roger P Kambour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:28
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |