Bleached expanded pigskin and products
November 23, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3254938 3429648 3574516 Enzymatic bating method Process to separate and recover the solid and liquid phases from treatment baths of hides and skins Reconstituted fried puffed pork skins Thermoplastic composition derived from animal parts and methods for production thereof Retardation of the putrefaction of hides and skins Composition containing animal parts for production of a fried snack food and method for production thereof Method and apparatus for the manufacture of tanned hides and skins InventorsApplicationNo. 10995754 filed on 11/23/2004US Classes:119/709, Mastication119/710, Flavor enhanced or supplemented119/426, Starting gate release means119/315, Warmed by directed air8/94.27, Chromium compound8/94.17, Alkaline material removal8/94.16, Depilating426/641, Animal derived material is an ingredient other than extract or protein426/315, Animal flesh material8/94.18, With organic material426/417, Preparing or treating triglyceridic fat or oil, or processes of separating triglyceridic fat or oil from a starting material, e.g., rendering, etc.8/436, Leather dyeing426/56, With added enzyme, or added enzyme producing material or microorganism426/104, IMITATED, SIMULATED, ORNAMENTAL, THREE-DIMENSIONAL PRODUCT OR CONFECTIONARY PRODUCT HAVING CHILD-ORIENTED UTILITY435/265, Depilating hides, bating, or hide treating using enzyme or micro-organism426/92, Animal meat derived component69/21PROCESSESExaminersPrimary: Abbott, Yvonne R.Attorney, Agent or FirmInternational ClassA01K 29/00AbstractPigskin is processed to provide a bleached, expanded skin used in dog treat or chew products. The raw pigskin is dehaired and then daubed with an alkali mixture of an alkali liquid, alkali enzymes and lime, the mixture having a pH of greater than or equal to 12. The alkali mixture dissolves the colloidal protein. The alkali is removed by alternately rinsing the skin in water and agitating the skin with first ammonium chloride or ammonium sulfate, and then second with ammonium chloride or ammonium sulfate, and pancreatic enzymes. The skin is agitated with sodium carbonate and a degreaser to remove the fat. The skin is then washed with hydrogen peroxide, which bleaches and expands the skin. The skin is then formed into a dog product and dried. |
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