Patent US4080969A successfully refreshed from Google Patents.
US4080969A
Expired / Lapsed
US
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Suture or ligature carrying on the exposed surface thereof a coating of a polyester resin
Assignee: Wyeth Holdings LLC
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Filing: 1975-05-29
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Granted: 1978-03-28
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Expires: 1995-05-29
Abstract
Abstract A solid biodegradable hydrolyzable polyester resin of diglycolic acid and an unhindered glycol having a molecular weight sufficiently high so as to provide a polymeric material possessing self-supporting film forming properties and the process of preparing the same and the use of the polymeric material as a sterile surgical suture or ligature.
Inventors
- 👤 Donald J. Casey
- 👤 George C. Gleckler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676; A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/26; A61L17/00; A61L17/06; A61L17/10; A61L17/12; A61L17/14; A61L17/145; A61L26/00; A61L26/0009; A61L26/0019; A61L27/00; A61L27/14; A61L27/18; C08G63/672; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
50 words
A sterile surgical suture or ligature composite comprising suture or ligature carrying on the exposed surface thereof a coating of a solid biodegradable, hydrolyzable polyester resin, of diglycolic acid and an unhindered glycol, having a molecular weight sufficiently high so as to provide a polymeric material possessing self-supporting film-forming properties.
Claim 2
Dependent Claim
50 words
A sterile surgical suture or ligature composite comprising suture or ligature carrying on the exposed surface thereof a coating of a solid biodegradable, hydrolyzable polyester resin, of diglycolic acid and an unhindered glycol, having a molecular weight sufficiently high so as to provide a polymeric material possessing self-supporting film-forming properties.
Claim 3
Dependent Claim
22 words
The sterile surgical suture or ligature composite described in claim 1 wherein the suture or ligature is made from crystalline poly(1,4-butylene diglycolate).
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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) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |