US3275554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin substituted polyamines and lubricants containing them
Assignee: Shell USA Inc
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Filing: 1964-03-17
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Granted: 1966-09-27
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Expires: 1984-03-17
Abstract
No abstract record available.
Inventors
- 👤 Wagenaar Adriaan Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:57
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/52; C10M133/54; C08; C08F; C08F8/00; C08F8/18; C08F8/20; C08F8/30; C08F8/32; C10M2207/00; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/04; C10M2217/046; C10M2217/06; C10N; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253; C10N2070/00; C10N2070/02; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL AND A MINOR AMOUNT, SUFFICIENT TO IMPART DETERGENCY OF AN OIL-SOLUBLE POLYOLEFIN-SUBSTITUTED POLYALKYLENE POLYAMINE HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
29 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL AND A MINOR AMOUNT, SUFFICIENT TO IMPART DETERGENCY OF AN OIL-SOLUBLE POLYOLEFIN-SUBSTITUTED POLYALKYLENE POLYAMINE HAVING THE STRUCTURAL 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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |