Patent US3787475A successfully refreshed from Google Patents.
US3787475A
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Process for making aryloxy derivatives of aromatic diesters and dinitriles
Assignee: General Electric Co
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Filing: 1971-01-20
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Granted: 1974-01-22
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Expires: 1991-01-20
Abstract
Abstract ARYLOXY DERIVATIVES OF AROMATIC DIESTERS AND DINITRILES ARE PREPARED FROM REACTION OF A NITRO-SUBSTITUTED PHENYL DIACID ESTER OR A NITRO-SUBSTITUTED PHENYL NITRILE WITH A METAL SALT OF MONOVALENT OR DIVALENT ARYLOXY RADICALS IN THE PRESENCE OF A DIPOLAR APROTIC SOLVENT. THE INVENTION ALSO INCLUDES NOVEL COMPOSITIONS OF MATTER OF A DIFUNCTIONAL NATURE PREPARED IN ACCORDANCE WITH THE ABOVEDESCRIBED PROCESS.
Inventors
- 👤 D Heath
- 👤 J Wirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:02
CPC Classifications
C; C07; C07C; C07C323/00; C07C65/00; C07C65/21; C07C65/24; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4223; C08G59/423; C08G63/00; C08G63/66; C08G63/668; C08G63/672; C08G73/00; C08G73/06; C08G73/10; C08G73/1003; C08G73/1035; C08G73/1046; C08G73/1053; C08G73/1067; C08G73/14; C08G73/16; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |