US2621159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal working lubricant
Assignee: Shell Development Co
•
Filing: 1949-11-05
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Granted: 1952-12-09
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Expires: 1969-11-05
Abstract
No abstract record available.
Inventors
- 👤 George L Perry
- 👤 Samuel K Talley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:09
CPC Classifications
C; C10; C10M; C10M3/00; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/026; C10M2205/028; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/28; C10M2207/287; C10M2207/289; C10M2207/40; C10M2207/402; C10M2207/404; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/08; C10M2219/082; C10M2219/083; C10M2223/00; C10M2223/10; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METAL-WORKING LUBRICANT CONSISTING ESSENTIALLY OF A BASE BLEND OF A SOFT RESIDUE WAX AND AN OLEFINIC HYDROCARBON POLYMER HAVING A MOLECULAR WEIGHT ABOVE 300, AND SOFT RESIDUE WAX CONSTITUTING AT LEAST 80% OF THE BLEND AND THE POLYMER CONSTITUTING ESSENTIALLY THE REMAINDER OF SAID BLEND, AND HAVING INCORPORATED IN SAID BASE BLEND FROM 2% TO 10% BASED ON THE TOTAL LUBRICANT, OF A HALOGENATED EXTREME PRESSURE COMPOUND SELECTED FROM THE GROUP CONSISTING OF HALOGENATED WAVE, HALOGENATED HIGH MOLECULAR WEIGHT FATTY ACIDS, AND HOLOGENATED ESTERS OF SAID FATTY ACIDS.
Claim 2
Dependent Claim
89 words
A METAL-WORKING LUBRICANT CONSISTING ESSENTIALLY OF A BASE BLEND OF A SOFT RESIDUE WAX AND AN OLEFINIC HYDROCARBON POLYMER HAVING A MOLECULAR WEIGHT ABOVE 300, AND SOFT RESIDUE WAX CONSTITUTING AT LEAST 80% OF THE BLEND AND THE POLYMER CONSTITUTING ESSENTIALLY THE REMAINDER OF SAID BLEND, AND HAVING INCORPORATED IN SAID BASE BLEND FROM 2% TO 10% BASED ON THE TOTAL LUBRICANT, OF A HALOGENATED EXTREME PRESSURE COMPOUND SELECTED FROM THE GROUP CONSISTING OF HALOGENATED WAVE, HALOGENATED HIGH MOLECULAR WEIGHT FATTY ACIDS, AND HOLOGENATED ESTERS OF SAID FATTY ACIDS.
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) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |