US3761590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver sulfadiazine used in the treatment of burns
Assignee: Research Corp Technologies Inc
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Filing: 1970-05-18
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Granted: 1973-09-25
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Expires: 1990-05-18
Abstract
Abstract Silver sulfadiazine has been found to be useful in burn therapy by applying to the affected surface silver sulfadiazine, preferably dispersed in a water-dispersible hydrophilic carrier.
Inventors
- 👤 C Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:00
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0014; A61K31/00; A61K31/63; A61K31/635; Y; Y10; Y10S; Y10S424/00; Y10S424/13
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
21 words
A method in accordance with claim 1 wherein said silver sulfadiazine is applied as a dispersion in a water-dispersible, hydrophilic carrier.
Claim 2
Dependent Claim
27 words
A method in accordance with claim 1 wherein said silver sulfadiazine is applied as a dispersion in a semi-soft or cream-like, water-dispersible or water-soluble oil-in-water emulsion carrier.
Claim 3
Dependent Claim
43 words
A method in accordance with claim 1 wherein said silver sulfadiazine is applied as a dispersion in a water-dispersible, hydrophilic carrier, said carrier containing an amount in the range from about 0.1 to about 10 percent by weight of silver sulfadiazine dispersed therein.
Claim 4
Dependent Claim
48 words
A method in accordance with claim 1 wherein silver sulfadiazine is applied as a dispersion in a semi-soft or cream-like, water-dispersible or water-soluble oil-in-water emulsion carrier, said carrier containing an amount in the range from about 0.1 to about 10 percent by weight of silver sulfadiazine dispersed therein.
Claim 5
Dependent Claim
99 words
A method in accordance with claim 2 wherein said dispersion consists essentially of 0-25 percent by weight petrolatum, 7-45 percent by weight of a long chain fatty alcohol having a carbon atom content in the range C16-C22, 0.1-10 percent by weight silver sulfadiazine, 4-16 percent by weight of a non-ionic emulsifying agent, 7-40 percent by weight of a humectant selected from the group consisting of propylene glycol, sorbitol and glycerin, 0-15 percent by weight of an emollient and an amount of water, when required, sufficient to bring the total of the percentages of the above-identified components to 100 percent.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |