Patent US2628187A successfully refreshed from Google Patents.
US2628187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medicinal mineral oil vehicle thickened with polyethylene
Assignee: Research Products Corp
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Filing: 1950-05-06
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Granted: 1953-02-10
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Expires: 1970-05-06
Abstract
No abstract record available.
Inventors
- 👤 Stanley H Frohmader
- 👤 Milton J Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:00
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/30; A61K47/32; A61K8/00; A61K8/18; A61K8/30; A61K8/31; A61K8/72; A61K8/81; A61K8/8105; A61K8/8111; A61K9/00; A61K9/0012; A61K9/0014; A61Q; A61Q19/00; Y; Y10; Y10S; Y10S260/00; Y10S260/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A VISCOUS COMPOSITION HAVING IMPROVED CONSISTENCY AND STABILITY CHARACTERISTICS COMPRISING A MEDICAMENT AND MINERAL OIL CONTAINING DISPERSED THEREIN POLYETHYLENE HAVING A MOLECULAR WEIGHT OF AT LEAST 3,500 IN AN AMOUNT EQUAL TO APPROXIMATELY 25% TO 50% OF THE COMBINED WEIGHT OF THE POLYETHYLENE AND THE MINERAL OIL, SAID POLYETHYLENE HAVING BEEN INITIALLY IN SOLUTION IN SAID MINERAL OIL AND SAID SOLUTION HAVING BEEN COOLED AT A RATE OF AT LEAST THIRTY DEGREES C. PER MINUTE THROUGH A TEMPERATURE RANGE INCLUDING THE CLOUD POINT OF SAID SOLUTION WHILE MAINTAINING THE CONCENTRATION OF POLYETHYLENE IN MINERAL OIL IN SAID SOLUTION SUBSTANTIALLY UNCHANGED.
Claim 2
Dependent Claim
100 words
A VISCOUS COMPOSITION HAVING IMPROVED CONSISTENCY AND STABILITY CHARACTERISTICS COMPRISING A MEDICAMENT AND MINERAL OIL CONTAINING DISPERSED THEREIN POLYETHYLENE HAVING A MOLECULAR WEIGHT OF AT LEAST 3,500 IN AN AMOUNT EQUAL TO APPROXIMATELY 25% TO 50% OF THE COMBINED WEIGHT OF THE POLYETHYLENE AND THE MINERAL OIL, SAID POLYETHYLENE HAVING BEEN INITIALLY IN SOLUTION IN SAID MINERAL OIL AND SAID SOLUTION HAVING BEEN COOLED AT A RATE OF AT LEAST THIRTY DEGREES C. PER MINUTE THROUGH A TEMPERATURE RANGE INCLUDING THE CLOUD POINT OF SAID SOLUTION WHILE MAINTAINING THE CONCENTRATION OF POLYETHYLENE IN MINERAL OIL IN SAID SOLUTION SUBSTANTIALLY UNCHANGED.
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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |