US3608070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New surgical dressing
Assignee: Individual
•
Filing: 1969-10-13
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Granted: 1971-09-21
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Expires: 1989-10-13
Abstract
Abstract The dressing excipient is composed essentially of vinyl pyrrolidone-vinylacetate copolymer which is soluble in a lower aqueous alcohol and which is capable of giving a film on the skin; a thixotropic agent of a triglyceride of hydroxylated fatty acids having 12-24 carbon atoms, preferably 12-hydroxystearic acid glyceride; a solvent for the resin, which fairly rapidly dries on the skin, namely aqueous alcohol; and a plasticizer of polyoxyethylene-glycol and/or acetoglycerides.
Inventors
- 👤 Lucien Nouvel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:55
CPC Classifications
A; A61; A61L; A61L26/00; A61L26/0061; A61L26/0066; A61K; A61K9/00; A61K9/70; A61K9/7015; A61L26/0009; A61L26/0014; A61L26/0023; A61L2300/00; A61L2300/40; A61L2300/404; A61L2300/41; A61L2300/80; A61L2300/802; Y; Y10; Y10S; Y10S602/00; Y10S602/904
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
33 words
An excipient according to claim 1 wherein said thixotropic agent also comprises up to 80 percent thereof of a siliceous mineral material chosen from the group consisting of bentonite, colloidal silica and kaolin.
Claim 2
Dependent Claim
16 words
An excipient according to claim 1 wherein said thixotropic agent is the triglyceride of 12-hydroxystearic acid.
Claim 3
Dependent Claim
19 words
An excipient according to claim 1, characterized in that the plasticizer consists of the diacetic ester of glyceryl monooleate.
Claim 4
Dependent Claim
12 words
An excipient according to claim 1 wherein the solvent is aqueous ethanol.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |