US2844536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature complex grease manufacturing processes
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-04-30
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Granted: 1958-07-22
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Expires: 1974-04-30
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Morway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:09
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2207/00; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/124; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A PROCESS FOR THE PREPARATION OF A HIGH TEMPERATURE LUBRICATING GREASE COMPOSITION WHEREIN A MAJOR PROPORTION OF THE LUBRICATING OIL IN THE FINAL COMPOSITION HAS NOT BEEN SUBJECTED TO HIGH TEMPERATURES ABOVE ABOUT 350*F. WHICH COMPRISES THE STEPS OF FORMING AT A TEMPERATURE IN THE RANGE OF 450* TO 500*F., A COMPLEX-THICKENED GREASE FROM A LUBRICATING OIL, AN ALKALINE EARTH METAL SOAP OF A GREASE-MAKING ACID HAVING IN THE RANGE OF 12 TO 30 CARBON ATOMS PER MOLECULE, AND AN ALKALINE EARTH METAL SALT OF A MONOCARBOXYLIC ACID HAVING IN THE RANGE OF 1 TO 6 CARBON ATOMS PER MOLECULE, WITH THE MOLE RATIO OF SALT TO SOAP BEING IN THE RANGE OF 10:1 TO 50:1, ADMIXING AT A TEMPERATURE IN THE RANGE OF 300* TO 350*F. A MINOR AMOUNT OF SAID COMPLEX-THICKENED GREASE WITH A MAJOR AMOUNT OF SIMPLE SOAP GREASE FORMED FROM A LUBRICATING OIL AND AN ALKALINE EARTH METAL SOAP OF A GREASE-MAKING ACID HAVING IN THE RANGE OF 12 TO 30 CARBON ATOMS PER MOLECULE, IN PROPORTION SUCH THAT THE MOLE RATIO OF 1:1 TO 15:1 AND THE TOTAL SALT-SOAP CONTENT THEREOF IS IN THE RANGE OF 5 TO 30% BY WEIGHT, AND HOMOGENIZING THE ADMIXTURE TO OBTAIN THE FINISHED COMPOSITION.
Claim 2
Dependent Claim
205 words
A PROCESS FOR THE PREPARATION OF A HIGH TEMPERATURE LUBRICATING GREASE COMPOSITION WHEREIN A MAJOR PROPORTION OF THE LUBRICATING OIL IN THE FINAL COMPOSITION HAS NOT BEEN SUBJECTED TO HIGH TEMPERATURES ABOVE ABOUT 350*F. WHICH COMPRISES THE STEPS OF FORMING AT A TEMPERATURE IN THE RANGE OF 450* TO 500*F., A COMPLEX-THICKENED GREASE FROM A LUBRICATING OIL, AN ALKALINE EARTH METAL SOAP OF A GREASE-MAKING ACID HAVING IN THE RANGE OF 12 TO 30 CARBON ATOMS PER MOLECULE, AND AN ALKALINE EARTH METAL SALT OF A MONOCARBOXYLIC ACID HAVING IN THE RANGE OF 1 TO 6 CARBON ATOMS PER MOLECULE, WITH THE MOLE RATIO OF SALT TO SOAP BEING IN THE RANGE OF 10:1 TO 50:1, ADMIXING AT A TEMPERATURE IN THE RANGE OF 300* TO 350*F. A MINOR AMOUNT OF SAID COMPLEX-THICKENED GREASE WITH A MAJOR AMOUNT OF SIMPLE SOAP GREASE FORMED FROM A LUBRICATING OIL AND AN ALKALINE EARTH METAL SOAP OF A GREASE-MAKING ACID HAVING IN THE RANGE OF 12 TO 30 CARBON ATOMS PER MOLECULE, IN PROPORTION SUCH THAT THE MOLE RATIO OF 1:1 TO 15:1 AND THE TOTAL SALT-SOAP CONTENT THEREOF IS IN THE RANGE OF 5 TO 30% BY WEIGHT, AND HOMOGENIZING THE ADMIXTURE TO OBTAIN THE FINISHED COMPOSITION.
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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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |