US2521101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing colored casings
Assignee: Visking Corp
•
Filing: 1949-01-04
•
Granted: 1950-09-05
•
Expires: 1969-01-04
Abstract
No abstract record available.
Inventors
- 👤 Clifford J B Thor
- 👤 Francis W Tauber
- 👤 Tripp George Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:48
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C2013/0096
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A METHOD OF PRODUCING REGENERATED CELLULOSE SAUSAGE CASINGS IMPREGANTED WITH A DYE ADAPTED TO TRANSFER TO AND COLOR THE SURFACE OF THE FOODSTUFF ENCASED THEREIN, THE STEPS WHICH COMRPISE PASSING REGENERATED CELLULOSE TUBING IN THE GEL STATE THROUGH AN AQUEOUS BATH CONTAINING A SOFTENER FOR REGENERATED CELLULOSE AND A NON-TOXIC, WATER-SOLUBLE FOOD DYE, MAINTAINING SAID BATH AT A PH OF 7.5 TO 9.5 BY ADDITIONS OF A VOLATILE AMMONIUM COMPOUND, AND DRYING THE TUBING AT A TEMPERATURE AT WHICH AMMONIA IS VOLATILIZED FROM THE TUBING, THE CONCENTRATION OF THE COMPONENTS OF THE DYE BATH AND THE RATE OF TRAVEL AND THE BATH TRAVEL OF THE TUBING BEING CORRELATED TO PRODUCE THE DESIRED COLOR.
Claim 2
Independent Claim
113 words
A METHOD OF PRODUCING REGENERATED CELLULOSE SAUSAGE CASINGS IMPREGANTED WITH A DYE ADAPTED TO TRANSFER TO AND COLOR THE SURFACE OF THE FOODSTUFF ENCASED THEREIN, THE STEPS WHICH COMRPISE PASSING REGENERATED CELLULOSE TUBING IN THE GEL STATE THROUGH AN AQUEOUS BATH CONTAINING A SOFTENER FOR REGENERATED CELLULOSE AND A NON-TOXIC, WATER-SOLUBLE FOOD DYE, MAINTAINING SAID BATH AT A PH OF 7.5 TO 9.5 BY ADDITIONS OF A VOLATILE AMMONIUM COMPOUND, AND DRYING THE TUBING AT A TEMPERATURE AT WHICH AMMONIA IS VOLATILIZED FROM THE TUBING, THE CONCENTRATION OF THE COMPONENTS OF THE DYE BATH AND THE RATE OF TRAVEL AND THE BATH TRAVEL OF THE TUBING BEING CORRELATED TO PRODUCE THE DESIRED COLOR.
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) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |