US3298955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants containing non-ash-forming additives
Assignee: Shell USA Inc
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Filing: 1964-10-05
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Granted: 1967-01-17
•
Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Strang Aart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:51
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/52; C10M133/54; C10M2207/00; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/04; C10M2217/046; C10M2217/06; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL AND A MINOR AMOUNT, SUFFICIENT TO IMPART DETERGENCY, OF AN OIL-SOLUBLE POLYAMIDE CONTAINING AT LEAST ONE POLYOLEFINIC GROUP AND HAVING THE FORMULA
Claim 2
Dependent Claim
33 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL AND A MINOR AMOUNT, SUFFICIENT TO IMPART DETERGENCY, OF AN OIL-SOLUBLE POLYAMIDE CONTAINING AT LEAST ONE POLYOLEFINIC GROUP AND HAVING THE FORMULA
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |