US3235641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a collagen casing
Assignee: Johnson and Johnson
•
Filing: 1964-09-10
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Granted: 1966-02-15
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Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 James T Mcknight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C13/0016; A22C13/0003; A22C13/0006; A23; A23J; A23J1/00; A23J1/10; B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29C48/25; B29C48/88; B29C48/919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN THE METHOD OF PRODUCING EDIBLE COLLAGEN CASINGS BY EXTRUDING A FLUID MASS OF SWOLLEN COLLAGEN TO FORM A TUBULAR BODY AND HARDENING THE BODY IN THE WET STATE, THE IMPROVEMENT WHICH COMPRISES: APLLYING A SOLUTION CONTAINING A REDUCING SUGAR TO SAID BODY; AND, HEATING SAID BODY AT ABOUT 80*C. FOR ABOUT 16 HOURS.
Claim 2
Dependent Claim
54 words
IN THE METHOD OF PRODUCING EDIBLE COLLAGEN CASINGS BY EXTRUDING A FLUID MASS OF SWOLLEN COLLAGEN TO FORM A TUBULAR BODY AND HARDENING THE BODY IN THE WET STATE, THE IMPROVEMENT WHICH COMPRISES: APLLYING A SOLUTION CONTAINING A REDUCING SUGAR TO SAID BODY; AND, HEATING SAID BODY AT ABOUT 80*C. FOR ABOUT 16 HOURS.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |