Patent US3267034A successfully refreshed from Google Patents.
US3267034A
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Lubricating oil composition containing polyalkylene imine salicylate salts
Assignee: Shell USA Inc
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Filing: 1965-05-27
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Granted: 1966-08-16
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Expires: 1985-05-27
Abstract
No abstract record available.
Inventors
- 👤 Henricus G P Van Der Voort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:43
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10N; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A MINERAL LURICATING OIL COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF MINERAL LURBICATING OIL AND FROM ABOUT 1% TO ABOUT 3% OF AN OIL-SOLUBLE PARTIAL SALT OF A POLYALKYLENE IMINE SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE IMINE, POLYPROPYLENE IMINE, AND MIXTURES THEREOF, HAVING A MOLECULAR WEIGHT IN THE RANGE OF 2X10**4 TO 2X10**10 AND A C8-20 ALKYL SALICYLIC ACID WHEREIN FROM 50%-70% OF THE NITROGEN ATOMS IN THE MOLECULE REMAIN AS FREE AMINO NITROGEN.
Claim 2
Dependent Claim
76 words
A MINERAL LURICATING OIL COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF MINERAL LURBICATING OIL AND FROM ABOUT 1% TO ABOUT 3% OF AN OIL-SOLUBLE PARTIAL SALT OF A POLYALKYLENE IMINE SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE IMINE, POLYPROPYLENE IMINE, AND MIXTURES THEREOF, HAVING A MOLECULAR WEIGHT IN THE RANGE OF 2X10**4 TO 2X10**10 AND A C8-20 ALKYL SALICYLIC ACID WHEREIN FROM 50%-70% OF THE NITROGEN ATOMS IN THE MOLECULE REMAIN AS FREE AMINO NITROGEN.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |