US3256153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stabilizing wax-fat coating materials and product thereof
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1963-02-08
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Granted: 1966-06-14
•
Expires: 1983-02-08
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Heimlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:17
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/48; A61K9/50; A61K9/5073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE METHOD OF STABILIZING THE SURFACE APPEARANCE OF DISCRETE SOLIDS WHICH HAVE THEIR SURFACES SUBSTANTIALLY COMPLETELY COATED WITH WAX-FAT MATERIAL WHICH COMPRISES COVERING SAID DISCRETE SOLIDS ROTATING IN A COATING PAN WITH A COATING SOLUTION COMPRISED OF SOLID POLYETHYLENE GLYCOL AND POLYVINYLPYRROLIDONE IN A PHARMACEUTICALLY ACCEPTABLE VOLATILE SOLVENT.
Claim 2
Independent Claim
48 words
THE METHOD OF STABILIZING THE SURFACE APPEARANCE OF DISCRETE SOLIDS WHICH HAVE THEIR SURFACES SUBSTANTIALLY COMPLETELY COATED WITH WAX-FAT MATERIAL WHICH COMPRISES COVERING SAID DISCRETE SOLIDS ROTATING IN A COATING PAN WITH A COATING SOLUTION COMPRISED OF SOLID POLYETHYLENE GLYCOL AND POLYVINYLPYRROLIDONE IN A PHARMACEUTICALLY ACCEPTABLE VOLATILE SOLVENT.
References Cited (Backward Citations)
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Cited
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US2918411A
Cited
US2991226A
Cited
US2954322A
Cited
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Cited
US3041243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |