Patent US3134753A successfully refreshed from Google Patents.
US3134753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of aryloxy-substituted phenols
Assignee: General Electric Co
•
Filing: 1958-06-24
•
Granted: 1964-05-26
•
Expires: 1978-06-24
Abstract
No abstract record available.
Inventors
- 👤 Kwiatek Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:08
CPC Classifications
C; C07; C07C; C07C50/00; C07C50/24; C07C43/00; C07C43/02; C07C43/257; C07C43/275; C07C50/08; C07C50/26; C07C50/30; C08; C08G; C08G65/00; C08G65/34; C08G65/38; C08G65/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
45 words
THE PROCESS OF FORMING SELF CONDENSATION PRODUCTS OF ARYLOXY PHENOLS WHICH COMPRISES REATCTING OXYGEN, IN THE PRESENCE OF A TERTIARY AMINE AND A CUPROUS SALT SOLULBE IN THE TERTIARY AMINE AND CAPABLE OF EXISTING IN THE CUPRIC STATE, WITH A PHENOL HAVING THE STRUCTUAL FORMULA
Claim 2
Dependent Claim
45 words
THE PROCESS OF FORMING SELF CONDENSATION PRODUCTS OF ARYLOXY PHENOLS WHICH COMPRISES REATCTING OXYGEN, IN THE PRESENCE OF A TERTIARY AMINE AND A CUPROUS SALT SOLULBE IN THE TERTIARY AMINE AND CAPABLE OF EXISTING IN THE CUPRIC STATE, WITH A PHENOL HAVING THE STRUCTUAL FORMULA
Claim 3
Dependent Claim
21 words
POLYPHENYLENE ETHERS HAVING AN INTRINSIC VISCOSITY OF AT LEAST 0.07 WHOSE CHEMCIAL STRUCTURE CONSISTS ESSENTIALLY OF UNITS OF THE STRUCTURAL FORMULA
Claim 4
Dependent Claim
21 words
POLYPHENYLENE ETHERS HAVING AN INTRINSIC VISCOSITY OF AT LEAST 0.07 WHOSE CHEMCIAL STRUCTURE CONSISTS ESSENTIALLY OF UNITS OF THE STRUCTURAL FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |