US3586705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation retarders
Assignee: Midland Silicones Ltd
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Filing: 1968-08-15
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Granted: 1971-06-22
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Expires: 1988-08-15
Abstract
Abstract NOVEL PHENOLIC COMPOUNDS OF THE FORMUAL 2,4-DI(B-),3,5-DI(X-),6-A-PHENOL WHERE A IS AN ORGANOSILICON SUBSTITUENT BONDED TO THE RING THROUGH A CARBON BRIDGE, X IS ALKYL OR ALKARYL, AND B IS A OR X, ARE PREPARED EMPLOYING MG TO BOND THE ORGANOSILICON GROUPS TO CHLOROALKYL GROUPS ON THE RING. THE COMPOUNDS ARE USEFUL AS OXIDATION RETARDERS.
Inventors
- 👤 William J Owen
- 👤 Bryan E Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:32
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10M2229/05; C10N; C10N2040/00; C10N2040/08; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |