US3234183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing poly
Assignee: General Electric Co
•
Filing: 1962-12-31
•
Granted: 1966-02-08
•
Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Allan S Hay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:43
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/38; C08G65/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
THE PROCESS OF FORMING POLY(HALOPHENYLENE ETHERS) WHICH COMPRISES REACTING OXYGEN WITH PHENOL HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
16 words
THE PROCESS OF FORMING POLY(HALOPHENYLENE ETHERS) WHICH COMPRISES REACTING OXYGEN WITH PHENOL HAVING THE STRUCTURAL 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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |