US3298951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polybutene composition
Assignee: Individual
•
Filing: 1966-01-24
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Granted: 1967-01-17
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Expires: 1986-01-24
Abstract
No abstract record available.
Inventors
- 👤 Roman D Guminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:12
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2205/04; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/026; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10N; C10N2040/00; C10N2040/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A STABILIZED LUBRICANT COMPOSITION WHICH COMPRISES: (A) A MAJOR AMOUNT OF A BASE FLUID SELECTED FROM THE CLASS CONSISTING OF (I) A POLYBUTENE HAVING AN APPROXIMATE NUMBER AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 500 AND ABOUT 5000 AND (II) A BLEND OF I AND A LIGHT MINERAL OIL OF LOW BROMINE NUMBER; AND (B) OIL-SOLUBLE, ETHYLENICALLY UNSATURATED ORGANIC COMPOUND HAVING A MOLECULAR WEIGHT BELOW ABOUT 300, CHARACTERIZED BY THE ABILITY TO SUBSTANTIALLY STABILIZE THE VISCOSITY OF SAID COMPOSITION, WHEN SAID COMPOSTION IS SUBJECTED TO HEAVY LOADS AND SHEARING FORCES, SAID ORGANIC COMPOUND BEING SELECTED FROM THE CLASS CONSISTING OF HYDROCARBON CARBOXYLIC ACIDS, HYDROCARBON ESTERS, HYDROCARBON ALDEHYDES, HYDROCARBON KETONES, HYDROCARBON ALCOHOLS, ALIPHATIC SUBSTITUTED AROMATIC HYDROCARBONS AND BRANCHED CHAIN ALKENES, SAID ORGANIC COMPOUND BEING PRESENT IN AN AMOUNT OF NOT MORE THAN 5 WEIGHT PERCENT.
Claim 2
Dependent Claim
132 words
A STABILIZED LUBRICANT COMPOSITION WHICH COMPRISES: (A) A MAJOR AMOUNT OF A BASE FLUID SELECTED FROM THE CLASS CONSISTING OF (I) A POLYBUTENE HAVING AN APPROXIMATE NUMBER AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 500 AND ABOUT 5000 AND (II) A BLEND OF I AND A LIGHT MINERAL OIL OF LOW BROMINE NUMBER; AND (B) OIL-SOLUBLE, ETHYLENICALLY UNSATURATED ORGANIC COMPOUND HAVING A MOLECULAR WEIGHT BELOW ABOUT 300, CHARACTERIZED BY THE ABILITY TO SUBSTANTIALLY STABILIZE THE VISCOSITY OF SAID COMPOSITION, WHEN SAID COMPOSTION IS SUBJECTED TO HEAVY LOADS AND SHEARING FORCES, SAID ORGANIC COMPOUND BEING SELECTED FROM THE CLASS CONSISTING OF HYDROCARBON CARBOXYLIC ACIDS, HYDROCARBON ESTERS, HYDROCARBON ALDEHYDES, HYDROCARBON KETONES, HYDROCARBON ALCOHOLS, ALIPHATIC SUBSTITUTED AROMATIC HYDROCARBONS AND BRANCHED CHAIN ALKENES, SAID ORGANIC COMPOUND BEING PRESENT IN AN AMOUNT OF NOT MORE THAN 5 WEIGHT PERCENT.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |