Patent US2592081A successfully refreshed from Google Patents.
US2640752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making sutures
Assignee: Ethicon Inc
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Filing: 1949-11-30
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Granted: 1953-06-02
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Expires: 1969-11-30
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Davis
- 👤 Bloch Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/06; A61L17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR INCREASING THE THERMAL STABILITY, MECHANICAL STABILITY, AND RESISTANCE TO DIGESTION BY PROTEOLYTIC ENZYMES OF FILAMENTOUS COLLAGEN SUTRES WHICH COMPRISES THE STEPS OF; IMPREGNATING FILAMENTOUS COLLAGEN WITH AT LEAST ONE REDUCING SUGAR BY IMMERSING SAID FILAMENTOUS COLLAGEN IN A REDUCING SUGAR SOLUTION, REMOVING AND DRYING THE IMPREGNATED FILAMENTOUS COLLAGEN AT A TEMPERATURE NOT GREATER THAN 40* C., AND HEATING THE DRY IMPREGNATED FILAMENTOUS COLLAGEN IN THE ABSENCE OF WATER AT A TEMPERATURETURE WITHIN THE RANGE OF FROM 70* C. TO 156* C.
Claim 2
Dependent Claim
84 words
A PROCESS FOR INCREASING THE THERMAL STABILITY, MECHANICAL STABILITY, AND RESISTANCE TO DIGESTION BY PROTEOLYTIC ENZYMES OF FILAMENTOUS COLLAGEN SUTRES WHICH COMPRISES THE STEPS OF; IMPREGNATING FILAMENTOUS COLLAGEN WITH AT LEAST ONE REDUCING SUGAR BY IMMERSING SAID FILAMENTOUS COLLAGEN IN A REDUCING SUGAR SOLUTION, REMOVING AND DRYING THE IMPREGNATED FILAMENTOUS COLLAGEN AT A TEMPERATURE NOT GREATER THAN 40* C., AND HEATING THE DRY IMPREGNATED FILAMENTOUS COLLAGEN IN THE ABSENCE OF WATER AT A TEMPERATURETURE WITHIN THE RANGE OF FROM 70* C. TO 156* 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) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |