US2545114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating grease composition
Assignee: Gulf Oil Corp
•
Filing: 1948-07-30
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Granted: 1951-03-13
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Expires: 1968-07-30
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:07
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A GREASE COMPOSITION COMPRISING A MINERAL LUBRICATING OIL THICKENED TO A GREASE BY A SOAP, AND A SMALL AMOUNT OF THE REACTION PRODUCT PREPARED BY REACTING AN AQUEOUS SLURRY OF 1 MOLE OF A METAL HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF BARIUM, STRONTIUM, MAGNESIUM AND CALCIUM HYDROXIDES WITH FROM 2 TO 4 MOLS OF FORMALDEHYDE AT A MILDY ELEVATED TEMPERATURE AND CONDENSING THE RESULTING PRODUCT WITH FROM 0.5 TO 1 MOLE OF ANILINE AND FROM 2 TO 4 MOLS OF A MONO-ALKYL PHENOL HAVING FROM 4 TO12 CARBON ATOMS IN THE ALKYL SUBSTITUENT, SAID PRODUCT BEING PRESENT IN AN AMOUNT SUFFICIENT TO STABILIZE THE GREASE AGAINST OXIDATIVE DETERIORATION.
Claim 2
Dependent Claim
109 words
A GREASE COMPOSITION COMPRISING A MINERAL LUBRICATING OIL THICKENED TO A GREASE BY A SOAP, AND A SMALL AMOUNT OF THE REACTION PRODUCT PREPARED BY REACTING AN AQUEOUS SLURRY OF 1 MOLE OF A METAL HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF BARIUM, STRONTIUM, MAGNESIUM AND CALCIUM HYDROXIDES WITH FROM 2 TO 4 MOLS OF FORMALDEHYDE AT A MILDY ELEVATED TEMPERATURE AND CONDENSING THE RESULTING PRODUCT WITH FROM 0.5 TO 1 MOLE OF ANILINE AND FROM 2 TO 4 MOLS OF A MONO-ALKYL PHENOL HAVING FROM 4 TO12 CARBON ATOMS IN THE ALKYL SUBSTITUENT, SAID PRODUCT BEING PRESENT IN AN AMOUNT SUFFICIENT TO STABILIZE THE GREASE AGAINST OXIDATIVE DETERIORATION.
References Cited (Backward Citations)
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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) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |