US2725358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oils containing hydroxymetal oxyarylalkyl amines
Assignee: Texaco Inc
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Filing: 1953-05-29
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Granted: 1955-11-29
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Expires: 1973-05-29
Abstract
No abstract record available.
Inventors
- 👤 Herman D Kluge
- 👤 Fred W Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:21
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2219/00; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A LUBRICATING COMPOSITION COMPRISING A MINERAL LUBRICATING OIL CONTAINING ABOUT 0.1 TO ABOUT 5.0 PER CENT BY WEIGHT OF A BASIC METAL SALT OF AN N,N''-BIS(2-HYDROXY5-ALKYLBENZYL)-1,2-DIAMINO ETHANE, WHEREIN THE METAL IS SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND ZINC AND THE ALKYL GROUP IS A C5 TO C30 ALKYL GROUP.
Claim 2
Dependent Claim
51 words
A LUBRICATING COMPOSITION COMPRISING A MINERAL LUBRICATING OIL CONTAINING ABOUT 0.1 TO ABOUT 5.0 PER CENT BY WEIGHT OF A BASIC METAL SALT OF AN N,N''-BIS(2-HYDROXY5-ALKYLBENZYL)-1,2-DIAMINO ETHANE, WHEREIN THE METAL IS SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND ZINC AND THE ALKYL GROUP IS A C5 TO C30 ALKYL GROUP.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |