Patent US2982730A successfully refreshed from Google Patents.
US2982730A
Expired / Lapsed
US
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Radiation resistant lubricating oil
Assignee: ExxonMobil Oil Corp
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Filing: 1957-05-03
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Granted: 1961-05-02
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Expires: 1977-05-03
Abstract
No abstract record available.
Inventors
- 👤 Edward G Barry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:33
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; G; G21; G21F; G21F7/00; G21F7/06; G21F7/065; C10M2205/00; C10M2205/04; C10M2205/06; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/142; C10M2207/16; C10M2209/00; C10M2209/10; C10M2209/101; C10M2209/102; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/045; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2010/14; C10N2030/00; C10N2030/32; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A METHOD OF OPERATING MACHINERY THAT IS EXPOSED TO ATOMIC RADIATION, WHICH COMPRISES LUBRICATING THE RELATIVELY MOVING PARTS OF SAID MACHINERY WITH A MINERAL LUBRICATING OIL CONTAINING BETWEEN ABOUT 0.2 PERCENT AND ABOUT 1.2 PERCENT, BY WEIGHT OF THE LUBRICANT, OF AN ALKYLATED POLYSTYRENE HAVING A MOLECULAR WEIGHT OF BETWEEN ABOUT 20,000 AND ABOUT 100,000.
Claim 2
Independent Claim
55 words
A METHOD OF OPERATING MACHINERY THAT IS EXPOSED TO ATOMIC RADIATION, WHICH COMPRISES LUBRICATING THE RELATIVELY MOVING PARTS OF SAID MACHINERY WITH A MINERAL LUBRICATING OIL CONTAINING BETWEEN ABOUT 0.2 PERCENT AND ABOUT 1.2 PERCENT, BY WEIGHT OF THE LUBRICANT, OF AN ALKYLATED POLYSTYRENE HAVING A MOLECULAR WEIGHT OF BETWEEN ABOUT 20,000 AND ABOUT 100,000.
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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |