US3077452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of lubricating machinery exposed to high intensity ionizing radiation
Assignee: Standard Oil Co
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Filing: 1958-07-28
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Granted: 1963-02-12
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Morton Z Fainman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:19
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F8/00; C08F8/04; C10M2201/00; C10M2201/10; C10M2201/105; C10M2201/14; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/10; C10M2207/12; C10M2207/125; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/10; C10M2215/102; C10M2219/00; C10N; C10N2010/00; C10N2010/02; C10N2030/00; C10N2030/32; C10N2040/00; C10N2040/06; C10N2050/00; C10N2050/10; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN THE METHOD OF LUBRICATING MACHINERY WHICH IS EXPOSED TO HIGH INTENSITY IONIZING RADIATION, THE IMPROVEMENT WHICH COMPRISES LUBRICATING SAID MACHINERY WITH A LUBRICANT CONTAINING AT LEAST ABOUT 25% OF A HYDROGENATED POLYBUTENE OIL, THE HYDROGENATED POLYBUTENE OIL EXHIBITING A CHARACTERISTIC DECREASE IN VISCOSITY WHEN IRRADIATED TO A DOSAGE OF 10**8 ROENTGENS OF GAMMA RADIATION AT AMBIENT TEMPERATURE WHEREBY SAID LUBRICANT RESISTS RADIATION-INDUCED POLYMERIZATION AND THEREBY TENDS TO RESIST VISCOSITY INCREASE UPON IRRADIATION.
Claim 2
Dependent Claim
73 words
IN THE METHOD OF LUBRICATING MACHINERY WHICH IS EXPOSED TO HIGH INTENSITY IONIZING RADIATION, THE IMPROVEMENT WHICH COMPRISES LUBRICATING SAID MACHINERY WITH A LUBRICANT CONTAINING AT LEAST ABOUT 25% OF A HYDROGENATED POLYBUTENE OIL, THE HYDROGENATED POLYBUTENE OIL EXHIBITING A CHARACTERISTIC DECREASE IN VISCOSITY WHEN IRRADIATED TO A DOSAGE OF 10**8 ROENTGENS OF GAMMA RADIATION AT AMBIENT TEMPERATURE WHEREBY SAID LUBRICANT RESISTS RADIATION-INDUCED POLYMERIZATION AND THEREBY TENDS TO RESIST VISCOSITY INCREASE UPON IRRADIATION.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |