US3792120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polyphenylene ether compositions
Assignee: General Electric Co
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Filing: 1971-10-12
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Granted: 1974-02-12
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Expires: 1991-10-12
Abstract
Abstract THERE ARE PROVIDED STABILIZED COMPOSITIONS CONSISTING OF A MAJOR PROPORTION OF A THERMOPLASTIC RESIN HAVING A POLYPHENYLENE ETHER COMPONENT AND A MINOR PROPORTION OF A STABILIZER CONSISTING OF AN N,N,N'',N"-TETRASUBSTITUTED ARYLPHOSPHONIC DIAMIDE, ALONE, OR OPTINALLY COMBINED WITH A BORON COMPOUND.
Inventors
- 👤 R Summers
- 👤 K Holoch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:37
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5399; C08K3/00; C08K3/38; C08K5/55; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; 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) | 1977-02-11 | 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 |