US2999756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing cellulosic sausage casings and product
Assignee: Union Carbide Corp
•
Filing: 1959-06-22
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Granted: 1961-09-12
•
Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Edward A Shiner
- 👤 Cyril J Brounstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:55
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0003; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1324
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
METHOD FOR PRODUCING TUBULAR SUSAGE CASINGS OF REGENERATED CELLOSE, THE STEPS WHIC COMPRISE ANNULARLY EXTRUDING A VISCOSE HAVING A GAMMA NUMBER BETWEEN 34 AND 50 TO FORM A TUBULAR PRODUCT, COAGULATING AND REGENERATING THE TUBING TO FORM GEL TUBING, WASHING THE GEL TUBING, PLASTICIZING THE GEL TUBING WITH A POLYHYDRIC ALCHOHOL, SIMULTANEOUSLY DRYING AND STRETCHING LINEARLY AND TRANSVERSELY THE PLASTICIZED GEL TUBING, SAID STRETCHING BEING WITHIN THE RANGE OF 15% TO 23% IN THE TRANSVERSE DIRECTION AND 2% TO 8% IN THE LONGITUDINAL DIRECTION AND MAINTAINING THE CASING WALL THICKNESS WITHIN A RANGE CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
97 words
METHOD FOR PRODUCING TUBULAR SUSAGE CASINGS OF REGENERATED CELLOSE, THE STEPS WHIC COMPRISE ANNULARLY EXTRUDING A VISCOSE HAVING A GAMMA NUMBER BETWEEN 34 AND 50 TO FORM A TUBULAR PRODUCT, COAGULATING AND REGENERATING THE TUBING TO FORM GEL TUBING, WASHING THE GEL TUBING, PLASTICIZING THE GEL TUBING WITH A POLYHYDRIC ALCHOHOL, SIMULTANEOUSLY DRYING AND STRETCHING LINEARLY AND TRANSVERSELY THE PLASTICIZED GEL TUBING, SAID STRETCHING BEING WITHIN THE RANGE OF 15% TO 23% IN THE TRANSVERSE DIRECTION AND 2% TO 8% IN THE LONGITUDINAL DIRECTION AND MAINTAINING THE CASING WALL THICKNESS WITHIN A RANGE CORRESPONDING TO THE FORMULA:
References Cited (Backward Citations)
US1612509A
Cited
GB319771A
Cited
US2000835A
Cited
US2043172A
Cited
US2271932A
Cited
US2401773A
Cited
US2401798A
Cited
US2634459A
Cited
US2699983A
Cited
US2845357A
Cited
US2866710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |