US3026263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature mechanical fluid compositions
Assignee: EIDP Inc
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Filing: 1959-03-05
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Granted: 1962-03-20
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Expires: 1979-03-05
Abstract
No abstract record available.
Inventors
- 👤 Fred S Arimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:38
CPC Classifications
C; C10; C10M; C10M141/00; C10M141/06; C10M105/00; C10M105/08; C10M105/32; C10M105/36; C10M105/38; C10M127/00; C10M127/04; C10M133/00; C10M133/02; C10M133/04; C10M133/12; C10M133/38; C10M133/40; C10M169/00; C10M169/04; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/2825; C10M2207/283; C10M2207/2835; C10M2207/285; C10M2207/2855; C10M2207/286; C10M2207/34; C10M2211/00; C10M2211/04; C10M2211/044; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/068; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2229/00; C10M2229/04; C10M2229/043; C10M2229/044; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A HIGH TEMPERATURE MECHANICAL FLUID SELECTED FROM THE GROUP CONSISTING OF ESTERS AND SILICONE OILS, SAID FLUID CONTAINING AN ANTIOXIDANT COMPOSITION OF A COMPONENT SELECTED FROM THE GROUP CONSISTING OF AN N - ARYL-2NAPHTHYLAMINE AND AN ACRIDINE, IN COMBINATION WITH A POLYNUCLEAR AROMATIC HYDROCARBON COMPONENT HAVING AT LEAST THREE FUSED RINGS SAID POLYNUCLEAR AROMATIC HYDROCARBON BEING SELECTED FROM THE GROUP CONSISTING OF ANTHRACENE, BENZANTHRACENE, CHRYSENE AND PYRENE, THE SINGLET-TRIPLET EXCITATION ENERGY OF SAID HYDROCARBON BEING LESS THAN 20,000 CM-1, EACH OF SAID ANTIOXIDANT COMPONENTS BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF 0.025% TO 2.5% BY WEIGHT OF SAID MECHANICAL FLUID.
Claim 2
Dependent Claim
102 words
A HIGH TEMPERATURE MECHANICAL FLUID SELECTED FROM THE GROUP CONSISTING OF ESTERS AND SILICONE OILS, SAID FLUID CONTAINING AN ANTIOXIDANT COMPOSITION OF A COMPONENT SELECTED FROM THE GROUP CONSISTING OF AN N - ARYL-2NAPHTHYLAMINE AND AN ACRIDINE, IN COMBINATION WITH A POLYNUCLEAR AROMATIC HYDROCARBON COMPONENT HAVING AT LEAST THREE FUSED RINGS SAID POLYNUCLEAR AROMATIC HYDROCARBON BEING SELECTED FROM THE GROUP CONSISTING OF ANTHRACENE, BENZANTHRACENE, CHRYSENE AND PYRENE, THE SINGLET-TRIPLET EXCITATION ENERGY OF SAID HYDROCARBON BEING LESS THAN 20,000 CM-1, EACH OF SAID ANTIOXIDANT COMPONENTS BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF 0.025% TO 2.5% BY WEIGHT OF SAID MECHANICAL FLUID.
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) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |