US2832664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilization of surgical catgut sutures and ligatures
Assignee: Ethicon Inc
•
Filing: 1953-11-09
•
Granted: 1958-04-29
•
Expires: 1973-11-09
Abstract
No abstract record available.
Inventors
- 👤 Bloch Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:21
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/06; A61L17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR STERILIZING SURGICAL CATGUT SUTURES COMPRISING HEATING SURGICAL CATGUT SUTURES HERMETICALLY SEALED IN A CONTAINER WITH AN AQUEOUS ISOPROPANOL SOLUTION CONTAINING ABOUT 90% TO ABOUT 92.5% BY WEIGHT OF ISOPROPANOL AND ABOUT 10% TO ABOUT 7.5% BY WEIGHT OF WATER FOR A PERIOD OF AT LEAST TWO HOURS AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 90*C. TO ABOUT 95*C.
Claim 2
Dependent Claim
63 words
A PROCESS FOR STERILIZING SURGICAL CATGUT SUTURES COMPRISING HEATING SURGICAL CATGUT SUTURES HERMETICALLY SEALED IN A CONTAINER WITH AN AQUEOUS ISOPROPANOL SOLUTION CONTAINING ABOUT 90% TO ABOUT 92.5% BY WEIGHT OF ISOPROPANOL AND ABOUT 10% TO ABOUT 7.5% BY WEIGHT OF WATER FOR A PERIOD OF AT LEAST TWO HOURS AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 90*C. TO ABOUT 95*C.
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) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |