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Patent US3281393A successfully refreshed from Google Patents.
US3281393A
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Phenylene oxide polymers substituted with epoxidized alkenyl groups
Assignee: Hexion Inc
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Filing: 1962-12-28
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Granted: 1966-10-25
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Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Kwan C Tsou
- 👤 Howard E Hoyt
- 👤 Halpern Benjamin David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:36
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08G59/00; C08G59/02; C08G65/38; C08G65/44; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A THERMOSETTING RESINOUS SUBSTITUTED POLYPHENYLENE OXIDE POLYMER CONTAINING UNITS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A THERMOSETTING RESINOUS SUBSTITUTED POLYPHENYLENE OXIDE POLYMER CONTAINING UNITS OF THE FORMULA
References Cited (Backward Citations)
US3134753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |