US2961323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casings and method of making same
Assignee: Union Carbide Corp
•
Filing: 1955-10-12
•
Granted: 1960-11-22
•
Expires: 1975-10-12
Abstract
No abstract record available.
Inventors
- 👤 Underwood William Frederick
- 👤 Ralph J Signer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:21
CPC Classifications
B; B65; B65B; B65B25/00; B65B25/06; B65B25/065; B65B25/067; A; A22; A22C; A22C13/00; A22C13/0013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A METHOD OF MADING COATED CASINGS OF IMPROVED PHYSCIAL CHARACTERISTICS AND SUITABLE FOR THE ENCASING, PROCESSING, AND STORAGE OF FOODS INCLUDING LIVER SAUSAGE AND GROUND BEEF WHICH COMPRISES EXTERNALLY COATING A CELLULOSIC TUBING WITH AN AMOUNT OF A COMPOSITION COMPRISING A FILM-FORMING VINYLIDENE RESIN CONTAINING AT LEAST 5% BY WEIGHT OF VINYLIDENE CHLORIDE IN THE MOLECULE TO PROVIDE A DRIED AND SINTERED COATING HAVING A THICKNESS WITHIN THE RANGE OF 0.1 TO 0.4 MIL, TREATING THE COATED TUBING IN AN INFLATED STATE UNTIL THE COATING IS SUBSTANTIALLY TACK-FREE, AND THEN TREATING THE COATED TUBING IN THE INFLATED STATE TO CAUSE THE COATING TO TENACIOUSLY ADHERE DIRECTLY TO AND FORM A CONTINUOUS COATING ON THE CELLEULOSIC TUBING BY HEATING THE INFLATED TUBING TO A TEMPERATURE AND FOR A TIME SUFFCIENT TO SINTER THE COATING BUT INSUFFICIENT TO DELETERIOUSLY AFFECT THE COATING OR CELLULOSIC TUBING.
Claim 2
Independent Claim
143 words
A METHOD OF MADING COATED CASINGS OF IMPROVED PHYSCIAL CHARACTERISTICS AND SUITABLE FOR THE ENCASING, PROCESSING, AND STORAGE OF FOODS INCLUDING LIVER SAUSAGE AND GROUND BEEF WHICH COMPRISES EXTERNALLY COATING A CELLULOSIC TUBING WITH AN AMOUNT OF A COMPOSITION COMPRISING A FILM-FORMING VINYLIDENE RESIN CONTAINING AT LEAST 5% BY WEIGHT OF VINYLIDENE CHLORIDE IN THE MOLECULE TO PROVIDE A DRIED AND SINTERED COATING HAVING A THICKNESS WITHIN THE RANGE OF 0.1 TO 0.4 MIL, TREATING THE COATED TUBING IN AN INFLATED STATE UNTIL THE COATING IS SUBSTANTIALLY TACK-FREE, AND THEN TREATING THE COATED TUBING IN THE INFLATED STATE TO CAUSE THE COATING TO TENACIOUSLY ADHERE DIRECTLY TO AND FORM A CONTINUOUS COATING ON THE CELLEULOSIC TUBING BY HEATING THE INFLATED TUBING TO A TEMPERATURE AND FOR A TIME SUFFCIENT TO SINTER THE COATING BUT INSUFFICIENT TO DELETERIOUSLY AFFECT THE COATING OR CELLULOSIC TUBING.
References Cited (Backward Citations)
US2210436A
Cited
US2460480A
Cited
US2401774A
Cited
US2338266A
Cited
US2607696A
Cited
US2541167A
Cited
GB692154A
Cited
GB714275A
Cited
US2864708A
Cited
US2773781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |