Patent US3129185A successfully refreshed from Google Patents.
US3129185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication of refrigeration equipment
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1961-12-21
•
Granted: 1964-04-14
•
Expires: 1981-12-21
Abstract
No abstract record available.
Inventors
- 👤 Carl J Rizzuti
- 👤 Harold M Brewster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:15
CPC Classifications
C; C10; C10M; C10M171/00; C10M171/008; C10M2203/00; C10M2203/10; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/045; C10M2223/047; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN THE OPERATION OF REFRIGERATOR EQUIPMENT EMPLOYING A HALOHYDROCARBON REFRIGERANT AND LUBRICANT, THE IMPROVEMENT WHICH COMPRISES THE USE OF A LUBRICANT COMPRISING A MAJOR AMOUNT OF A LUBRICATING OIL HAVING A VISCOSITY OF FROM 65 TO 600 SUS AT 100*F. AND 0.01 TO 1.00 WT. PERCENT OF AN OIL-SOLUBLE METAL SOAP SELECTED FROM THE CLASS CONSISTING OF METAL NAPHTHENATES AND METAL OCTOATES WHEREIN SAID METAL IS SELECTED FROM THE CLASS CONSISTING OF SODIUM, COPPER, CALCIUM, ZINC, MERCURY, CADMIUM, ALUMINUM, IRON, COBALT AND NICKEL.
Claim 2
Dependent Claim
83 words
IN THE OPERATION OF REFRIGERATOR EQUIPMENT EMPLOYING A HALOHYDROCARBON REFRIGERANT AND LUBRICANT, THE IMPROVEMENT WHICH COMPRISES THE USE OF A LUBRICANT COMPRISING A MAJOR AMOUNT OF A LUBRICATING OIL HAVING A VISCOSITY OF FROM 65 TO 600 SUS AT 100*F. AND 0.01 TO 1.00 WT. PERCENT OF AN OIL-SOLUBLE METAL SOAP SELECTED FROM THE CLASS CONSISTING OF METAL NAPHTHENATES AND METAL OCTOATES WHEREIN SAID METAL IS SELECTED FROM THE CLASS CONSISTING OF SODIUM, COPPER, CALCIUM, ZINC, MERCURY, CADMIUM, ALUMINUM, IRON, COBALT AND NICKEL.
References Cited (Backward Citations)
US1781167A
Cited
US2001108A
Cited
US2356340A
Cited
US2236120A
Cited
US2228500A
Cited
US2321578A
Cited
US2671758A
Cited
US2975137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |