US3173871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oils containing benzalcyclohexylamine and bis-phenols
Assignee: Castrol Ltd
•
Filing: 1962-05-25
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Granted: 1965-03-16
•
Expires: 1982-05-25
Abstract
No abstract record available.
Inventors
- 👤 Elliott John Scotchford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:50
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/108; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL, FROM 0.3 TO 2.0 PERCENT BY WEIGHT OF (A) BENZAL CYCLOHEXYLAMINE AND FROM 0.25 TO 2.0 PERCENT BY WEIGHT OF (B) AN ALKYL PHENOL HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
40 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL, FROM 0.3 TO 2.0 PERCENT BY WEIGHT OF (A) BENZAL CYCLOHEXYLAMINE AND FROM 0.25 TO 2.0 PERCENT BY WEIGHT OF (B) AN ALKYL PHENOL HAVING THE FOLLOWING FORMULA:
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |