US2841556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing anhydrous lime grease
Assignee: Standard Oil Co
•
Filing: 1955-12-19
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Granted: 1958-07-01
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Expires: 1975-12-19
Abstract
No abstract record available.
Inventors
- 👤 Reuben A Swenson
- 👤 Stephen J Zajac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:09
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2211/00; C10M2211/02; C10M2215/00; C10M2215/02; C10M2215/06; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/10; C10M2219/104; C10M2219/108; C10M2221/00; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
THE METHOD OF PREPARING A STABLE SUBSTANTIALLY ANHYDROUS CALCIUM HIGH MOLECULAR WEIGHT HYDROXY FATTY ACID SOAP BASE GREASE COMPRISING SAPONIFYING A HOGH MOLECULAR WEIGHT HYDROXY FATTY ACID WITH A BASIC CALCIUM COMPOUND IN CONTACT WITH FROM 0.1% TO ABOUT 10.0% WATER AND A SMALL AMOUNT OF AN OLEAGINOUS VEHICLE, HEATING SAID MIXTURE TO A TEMPERATURE OF FROM ABOUT 250*F. TO ABOUT 300*F., TO FORM A HEAVY SOAP BASE, ADDING FROM ABOUT 0.1% TO ABOUT 5% OF ADDITIONAL WATER TO THE HEAVY SOAP BASE AT A TEMPERATURE OF ABOUT 250*F. TO ABOUT 300*F., WITH CONTINUOUS MIXING, DISCONTINUING THE HEATING OF SAID MIXTURE, AND GRADING IN ADDITIONAL OLEAGINOUS VEHOCLE TO OBTAIN A SUBSTANTIALLY ANHYDROUS GREASE PRODUCT.
Claim 2
Independent Claim
114 words
THE METHOD OF PREPARING A STABLE SUBSTANTIALLY ANHYDROUS CALCIUM HIGH MOLECULAR WEIGHT HYDROXY FATTY ACID SOAP BASE GREASE COMPRISING SAPONIFYING A HOGH MOLECULAR WEIGHT HYDROXY FATTY ACID WITH A BASIC CALCIUM COMPOUND IN CONTACT WITH FROM 0.1% TO ABOUT 10.0% WATER AND A SMALL AMOUNT OF AN OLEAGINOUS VEHICLE, HEATING SAID MIXTURE TO A TEMPERATURE OF FROM ABOUT 250*F. TO ABOUT 300*F., TO FORM A HEAVY SOAP BASE, ADDING FROM ABOUT 0.1% TO ABOUT 5% OF ADDITIONAL WATER TO THE HEAVY SOAP BASE AT A TEMPERATURE OF ABOUT 250*F. TO ABOUT 300*F., WITH CONTINUOUS MIXING, DISCONTINUING THE HEATING OF SAID MIXTURE, AND GRADING IN ADDITIONAL OLEAGINOUS VEHOCLE TO OBTAIN A SUBSTANTIALLY ANHYDROUS GREASE PRODUCT.
References Cited (Backward Citations)
GB610190A
Cited
US2607734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |