US3268445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating composition having improved thermal stability
Assignee: Gulf Research and Development Co
•
Filing: 1962-12-14
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Granted: 1966-08-23
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Henry A Ambrose
- 👤 Paul R Mccarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:05
CPC Classifications
C; C10; C10M; C10M3/00; C10M2201/00; C10M2201/06; C10M2201/063; C10M2209/00; C10M2209/02; C10M2209/10; C10M2229/00; C10M2229/04; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A LUBRICATING COMPOSITION CABLE OF FUNCTIONING AT TEMPERATURES UP TO ABOKOUT 600*F. CONSISTING ESSENTIALLY OF A DISPERSION IN A LIQUID POLYPHENYL ETHER OF A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE THERMAL STABILITY OF SAID ETHER, OF AN ALKALINE EARTH METAL HYDROXIDE.
Claim 2
Dependent Claim
41 words
A LUBRICATING COMPOSITION CABLE OF FUNCTIONING AT TEMPERATURES UP TO ABOKOUT 600*F. CONSISTING ESSENTIALLY OF A DISPERSION IN A LIQUID POLYPHENYL ETHER OF A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE THERMAL STABILITY OF SAID ETHER, OF AN ALKALINE EARTH METAL HYDROXIDE.
References Cited (Backward Citations)
US2671758A
Cited
US2676925A
Cited
US2684944A
Cited
US2831809A
Cited
US2860104A
Cited
US2984624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |