US3862304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sutures having long-lasting germicidal properties
Assignee: Sutures Inc
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Filing: 1971-06-03
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Granted: 1975-01-21
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Expires: 1991-06-03
Abstract
Abstract Sutures of synthetic polymeric materials are treated to provide nucleophilic groups and subsequently sequentially treated with aqueous solutions of germicidal salts of ions of opposite charge, the ions being capable of reacting in aqueous solution to form a highly insoluble germicidal precipitate. A large quantity of germicidal material is thus incorporated into the suture to provide a long lasting reservoir of germicidal activity.
Inventors
- 👤 Leonard D Kurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:39
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/005; A61L2300/00; A61L2300/10; A61L2300/102; A61L2300/104; A61L2300/40; A61L2300/404; A61L2300/406; A61L2300/45; A61L2300/60; A61L2300/602; A61L2300/80
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
34 words
The method of claim 1 wherein the cationic antibiotic is selected from the group consisting of polymixin and gentamycin and the acid antibiotic is selected from the group consisting of a penicillin and cephalothin.
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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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |