US3262892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted polyphenylene ethers
Assignee: General Electric Co
•
Filing: 1963-11-29
•
Granted: 1966-07-26
•
Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Allan S Hay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:53
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/38; C08G65/44; C08G65/48; C08G65/485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A COMPOSITION COMPRISING A POLYPHENYLENE ETHER HAVING THHE STRUCTURAL FORMULA -(((Y-CH2-)M,(R)(3-M)-1,4-PHENYLENE)-O)NWHEREIN N IS A POSITIVE INTEGER AND IS AT LEAST 10, M IS A NUMBER FROM 0.01 TO 2 INCLUSIVE, WITH THE PROVISO THAT THE PRODUCT OBTAINED BY MULTIPLYING M BY N IS AT LEAST 1, Y IS AN ACIDIC SUBSTITUENT HAVING AN IONIZABLE HYDROGEN HAVING THE FORMULA
Claim 2
Dependent Claim
58 words
A COMPOSITION COMPRISING A POLYPHENYLENE ETHER HAVING THHE STRUCTURAL FORMULA -(((Y-CH2-)M,(R)(3-M)-1,4-PHENYLENE)-O)NWHEREIN N IS A POSITIVE INTEGER AND IS AT LEAST 10, M IS A NUMBER FROM 0.01 TO 2 INCLUSIVE, WITH THE PROVISO THAT THE PRODUCT OBTAINED BY MULTIPLYING M BY N IS AT LEAST 1, Y IS AN ACIDIC SUBSTITUENT HAVING AN IONIZABLE HYDROGEN HAVING THE FORMULA
References Cited (Backward Citations)
US2366007A
Cited
US3134753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |