Patent US2174789A successfully refreshed from Google Patents.
Patent US2822333A successfully refreshed from Google Patents.
US2822333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication of refrigerator equipment
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-11-10
•
Granted: 1958-02-04
•
Expires: 1972-11-10
Abstract
No abstract record available.
Inventors
- 👤 John G Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:16
CPC Classifications
C; C10; C10M; C10M5/00; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN THE OPERATION OF REFRIGERATOR EQUIPMENT EMPLOYING A REFRIGERANT AND LUBRICANT WHICH ARE ADMIXED AT TEMPERATURES BELOW ABOUT 0*F. RESULTING IN FLUOCCULATION OF THE REFRIGERANT AND LUBRICANT, THE IMPROVEMENT WHICH COMPRISES LUBRICATING SAID EUIPMENT WITH LUBRICATING OIL COMPOSITION CONSISTING ESSENTIALLY OF A HIGHLY REFINED NAPHTHENIC COASTAL DISTILLATE HAVING A VISCOSITY OF FROM 30 TO 100 SUS AT 210*F. CONTAINING COMBINED THEREIN A MINOR AMOUNT, SUFFICIENT TO REDUCE THE FLOC POINT, OF AN ALKYL ARYL BORATE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
79 words
IN THE OPERATION OF REFRIGERATOR EQUIPMENT EMPLOYING A REFRIGERANT AND LUBRICANT WHICH ARE ADMIXED AT TEMPERATURES BELOW ABOUT 0*F. RESULTING IN FLUOCCULATION OF THE REFRIGERANT AND LUBRICANT, THE IMPROVEMENT WHICH COMPRISES LUBRICATING SAID EUIPMENT WITH LUBRICATING OIL COMPOSITION CONSISTING ESSENTIALLY OF A HIGHLY REFINED NAPHTHENIC COASTAL DISTILLATE HAVING A VISCOSITY OF FROM 30 TO 100 SUS AT 210*F. CONTAINING COMBINED THEREIN A MINOR AMOUNT, SUFFICIENT TO REDUCE THE FLOC POINT, OF AN ALKYL ARYL BORATE HAVING THE GENERAL FORMULA
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |