US3114591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of suture material from animal tendons
Assignee: Ethicon Inc
•
Filing: 1961-04-12
•
Granted: 1963-12-17
•
Expires: 1981-04-12
Abstract
No abstract record available.
Inventors
- 👤 Nichols Joseph
- 👤 Reissmann Thomas Lincoln
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:36
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/06; A61L17/08; C; C14; C14B; C14B21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS FOR THE MANUFACTURE OF SUTURE MATERIAL FROM ANIMAL TENDONS, WHICH COMPRISES EXTRUDING A HOMOGENOUS DISPERSION OF SUBSTANTIALLY PURE SWOLLEN COLLAGEN FIBRILS THROUGH A SLIT INTO A FLOWING, CONFINED ACETONE-AMMONIA DEHYDRATING BATH TO FORM A RIBBON, AND TWISTING, STRETCHING AND DRYING SAID RIBBON TO FORM A SUTURE.
Claim 2
Dependent Claim
48 words
A PROCESS FOR THE MANUFACTURE OF SUTURE MATERIAL FROM ANIMAL TENDONS, WHICH COMPRISES EXTRUDING A HOMOGENOUS DISPERSION OF SUBSTANTIALLY PURE SWOLLEN COLLAGEN FIBRILS THROUGH A SLIT INTO A FLOWING, CONFINED ACETONE-AMMONIA DEHYDRATING BATH TO FORM A RIBBON, AND TWISTING, STRETCHING AND DRYING SAID RIBBON TO FORM A SUTURE.
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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) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |