US3114593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a collagen strand
Assignee: Ethicon Inc
•
Filing: 1961-10-04
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Granted: 1963-12-17
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Expires: 1981-10-04
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Griset
- 👤 Thomas L Reissmann
- 👤 Nichols Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:29
CPC Classifications
D; D01; D01F; D01F4/00; A; A22; A22C; A22C13/00; A22C13/0013; A22C13/0016; A61; A61L; A61L17/00; A61L17/06; A61L17/08; C; C08; C08L; C08L89/00; C08L89/04; C08L89/06; D01D; D01D1/00; D01D1/10; D01D1/106; D01D13/00; D01D5/00; D01D5/06; D01D5/12; D01D5/16; Y; Y10; Y10S; Y10S264/00; Y10S264/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN THE METHOD OF PRODUCING A COLLAGEN STRAND, THE STEPS OF EXTRUDING A HOMOGENOUS DISPERSION OF SWOLLEN COLLAGEN FIBRILS THROUGH A STATIONARY SPINNERETTE TO FORM A MULTIFILAMENT; APPLYING A WATER-MISCIBLE ORGANIC LIQUID DEHYDRATING AGENT MORE VOLATILE THAN WATER TO SAID MULTIFILAMENT; STRETCHING AND TWISTING SAID MULTIFILAMENT WHILE EVAPORATING THE ORGANIC LIQUID WHEREBY THE MULTIFILAMENT UNITIES TO FORM A STRAND; AND DRYING SAID STRAND.
Claim 2
Dependent Claim
63 words
IN THE METHOD OF PRODUCING A COLLAGEN STRAND, THE STEPS OF EXTRUDING A HOMOGENOUS DISPERSION OF SWOLLEN COLLAGEN FIBRILS THROUGH A STATIONARY SPINNERETTE TO FORM A MULTIFILAMENT; APPLYING A WATER-MISCIBLE ORGANIC LIQUID DEHYDRATING AGENT MORE VOLATILE THAN WATER TO SAID MULTIFILAMENT; STRETCHING AND TWISTING SAID MULTIFILAMENT WHILE EVAPORATING THE ORGANIC LIQUID WHEREBY THE MULTIFILAMENT UNITIES TO FORM A STRAND; AND DRYING SAID STRAND.
References Cited (Backward Citations)
CA524761A
Cited
US1889102A
Cited
US2072926A
Cited
US2000013A
Cited
US2425550A
Cited
US2475697A
Cited
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 |