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US2628205A
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Viscous hydrophilic composition and method of making the same
Assignee: Research Products Corp
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Filing: 1950-10-21
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Granted: 1953-02-10
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Expires: 1970-10-21
Abstract
No abstract record available.
Inventors
- 👤 Milton J Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:27
CPC Classifications
A; A61; A61Q; A61Q19/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/31; A61K8/72; A61K8/81; A61K8/8105; A61K8/8111; A61K9/00; A61K9/0012; A61K9/0014; C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L57/00; C08L57/02; C08L91/00; A61Q5/00; A61Q5/12; C08L1/00; C08L1/08; C08L1/26; C08L1/28; C08L1/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A THIXOTHROPIC HYDROPHILIC COMPOSITION COMPRISING MINERAL OIL, POLYETHYLENE AND AN EMULSIFIER, SAID POLYETHYLENE HAVING A MOLECULAR WEIGHT OF AT LEAST 3500 AND HAVING BEEN INITIALLY IN SOLUTION IN SAID MINERAL OIL, SAID MINERAL OIL-POLYETHYLENE SOLUTION HAVING BEEN COOLED AT A RATE OF AT LEAST THIRTY DEGREE C. PER MINUTE THROUGHT A TEMPERATURE RANGE INCLUDING THE CLOUD POINT OF SAID SOLUTION WHILE THE CONCENTRATION OF POLYETHYLENE IN MINERAL OIL IN SAID SOLUTION WAS MAINTAINED SUBSTANTIALLY UNCHANGED.
Claim 2
Dependent Claim
75 words
A THIXOTHROPIC HYDROPHILIC COMPOSITION COMPRISING MINERAL OIL, POLYETHYLENE AND AN EMULSIFIER, SAID POLYETHYLENE HAVING A MOLECULAR WEIGHT OF AT LEAST 3500 AND HAVING BEEN INITIALLY IN SOLUTION IN SAID MINERAL OIL, SAID MINERAL OIL-POLYETHYLENE SOLUTION HAVING BEEN COOLED AT A RATE OF AT LEAST THIRTY DEGREE C. PER MINUTE THROUGHT A TEMPERATURE RANGE INCLUDING THE CLOUD POINT OF SAID SOLUTION WHILE THE CONCENTRATION OF POLYETHYLENE IN MINERAL OIL IN SAID SOLUTION WAS MAINTAINED SUBSTANTIALLY UNCHANGED.
References Cited (Backward Citations)
US2313144A
Cited
GB613018A
Cited
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 |