US3706803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis(phenoxybenzoyl) aromatic compounds
Assignee: IFP Energies nouvelles
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Filing: 1969-12-04
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Granted: 1972-12-19
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Expires: 1989-12-04
Abstract
Abstract FOR USE AS HEAT EXCHANGE FLUIDS OR LUBRICANTS, THERE ARE PROVIDED AROMATIC AND HETEROCYCLIC KETOETHERS OF THE FORMULA: PHENOXY,((PHENOXYPHENYL)-CO-AR-CO-)BENZENE THESE COMPOUNDS ARE PRODUCED BY REACTING A MAGNESIUM DERIVATIVE OF A HALODIPHENYLETHER WITH AN AROMATIC DINITRILE.
Inventors
- 👤 Robert Salle
- 👤 Bernard Sillion
- 👤 Gabriel De Gaudemaris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:25
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07C; C07C323/00; C07C45/00; C07C45/004; C07C49/00; C07C49/76; C07C49/84; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/44; C07D213/46; C07D213/50; C10M2207/00; C10M2207/04; C10M2209/00; C10M2209/02; C10M2209/10; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/086
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |