US3225766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making absorbable surgical sutures from poly beta hydroxy acids
Assignee: WR Grace and Co
•
Filing: 1962-03-26
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Granted: 1965-12-28
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 James N Baptist
- 👤 John B Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:34
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/04; A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/26; A61L17/00; A61L17/06; A61L17/10; A61L17/12; A61L27/00; A61L27/14; A61L27/18; C08G; C08G63/00; C08G63/02; C08G63/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/837; Y10S435/878
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD FOR MAKING ABSORBABLE PROSTHETIC DEVICES FROM BACTERIAL POLY BETA HYDROXY ACIDS WHICH COMPRISES INOCULATING A GROWTH MEDIUM WITH SUITABLE BACTERIA, ALLOWING THE BACTERIA TO GROW UNTIL MAXIMUM TURBIDITY OF THE CULTURE IS REACHED, HARVESTING AND DRYING THE CELLS, EXTRACTING THE POLYMER FROM THE DRIED CELLS, RECOVERING AND DRYING THE PURE POLYMER, AND FINALLY MOLDING THE POLYMER INTO PROSTHETIC DEVICES.
Claim 2
Independent Claim
61 words
A METHOD FOR MAKING ABSORBABLE PROSTHETIC DEVICES FROM BACTERIAL POLY BETA HYDROXY ACIDS WHICH COMPRISES INOCULATING A GROWTH MEDIUM WITH SUITABLE BACTERIA, ALLOWING THE BACTERIA TO GROW UNTIL MAXIMUM TURBIDITY OF THE CULTURE IS REACHED, HARVESTING AND DRYING THE CELLS, EXTRACTING THE POLYMER FROM THE DRIED CELLS, RECOVERING AND DRYING THE PURE POLYMER, AND FINALLY MOLDING THE POLYMER INTO PROSTHETIC DEVICES.
References Cited (Backward Citations)
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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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |