US3215599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing polymer waxmodified petroleum oil unctuous base
Assignee: Warner Lambert Co LLC
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Filing: 1963-07-02
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Granted: 1965-11-02
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Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Thau Paul
- 👤 Fox Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:53
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/30; A61K47/32; A61K9/00; A61K9/0012; A61K9/0014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD FOR THE PREPARATION OF AN UNCTUOUS BASE WHICH COMPRISES, HEATING A MIXTURE OF WHITE PETROLEUM OIL WITH A MINOR AMOUNT OF POLYETHYLENE HAVING AN AVERAGE MOLECULAR WEIGHT OF 1,000 TO ABOUT 20,000 AND HOMOGENIZING THE MOLTEN MIXTURE WHILE COOLING TO A TEMPERATURE AT LEAST 10*C. BELOW THE CLOUD POINT.
Claim 2
Independent Claim
51 words
A METHOD FOR THE PREPARATION OF AN UNCTUOUS BASE WHICH COMPRISES, HEATING A MIXTURE OF WHITE PETROLEUM OIL WITH A MINOR AMOUNT OF POLYETHYLENE HAVING AN AVERAGE MOLECULAR WEIGHT OF 1,000 TO ABOUT 20,000 AND HOMOGENIZING THE MOLTEN MIXTURE WHILE COOLING TO A TEMPERATURE AT LEAST 10*C. BELOW THE CLOUD POINT.
References Cited (Backward Citations)
US2628187A
Cited
US2628205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |