US3219626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for oxidizing phenols to polyphenyl ethers and diphenoquinones
Assignee: General Electric Co
•
Filing: 1961-05-29
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Granted: 1965-11-23
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Harry S Blanchard
- 👤 Herman L Finkbeiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:25
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/38; C08G65/44; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J31/181; C07; C07C; C07C46/00; C07C46/02; C07C46/06; C07C46/08; C07C50/00; C07C50/08; C07C50/24; C07F; C07F1/00; C07F1/005; B01J2531/00; B01J2531/10; B01J2531/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
THE PROCESS OF PRODUCING SELF-CONDENSATION PRODUCTS OF PHENOLS SELECTED FROM THE GROUP CONSISTING OF POLYPHENYLENE ETHERS AND DIPHENOQUINONES WHICH COMPRISES REACTING OXYGEN IN THE PRESENCE OF A CUPRIC COMPLEX HAVING THE EMPIRICAL FORMULA
Claim 2
Dependent Claim
33 words
THE PROCESS OF PRODUCING SELF-CONDENSATION PRODUCTS OF PHENOLS SELECTED FROM THE GROUP CONSISTING OF POLYPHENYLENE ETHERS AND DIPHENOQUINONES WHICH COMPRISES REACTING OXYGEN IN THE PRESENCE OF A CUPRIC COMPLEX HAVING THE EMPIRICAL FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |