US3624224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel first aid products
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1969-12-22
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Granted: 1971-11-30
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Expires: 1989-12-22
Abstract
Abstract Disclosed herein is a portable disposable first aid pad impregnated with a film-forming composition consisting essentially of specified amounts of germicidal quaternary ammonium halide, a local anesthetic, a water soluble polyoxyethylene-polyoxypropylene block polymer and certain nonionic surface active agents.
Inventors
- 👤 Ling Wei
- 👤 Robert Marchisotto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:06
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/46; A61K; A61K31/00; A61K31/74; A61K31/765; A61K31/77; A61L15/22; A61L15/26; A61L2300/00; A61L2300/20; A61L2300/204; A61L2300/208; A61L2300/40; A61L2300/402; A61L2300/404; A61L2300/45; A61L2300/80; A61L2300/802; Y; Y10; Y10S; Y10S206/00; Y10S206/812; Y10S206/828; Y10S602/00; Y10S602/904
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
17 words
A pad material according to claim 1 wherein said local anesthetic compound is of the ''''caine'''' type.
Claim 2
Dependent Claim
21 words
A pad material according to claim 1 wherein said block polymer has an average molecular weight between about 6000 and 9000.
Claim 3
Dependent Claim
21 words
A pad material according to claim 1 wherein said local anesthetic is selected from the group consisting of tetracaine and lidocaine.
Claim 4
Dependent Claim
18 words
A pad material according to claim 4 wherein said nonionic surface active agent is a polyethenoxy mono-alkylaryl ether.
Claim 5
Dependent Claim
14 words
A pad material according to claim 1 wherein said cellulosic sheet material is rayon.
Claim 6
Dependent Claim
64 words
A method of painlessly forming a thin invisible uniform protective and activity-prolonging film coating on a skin wound comprising applying to said wound by means of an absorptive nonwoven cellulosic sheet of single use disposable pad material impregnated in accordance with claim 14, said composition comprising a germicidal quaternary ammonium halide, said local anesthetic, said oxyethylene-oxypropylene block polymer and said nonionic surface active agent.
Claim 7
Dependent Claim
13 words
A method according to claim 7 wherein said cellulosic sheet material is rayon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |