(under subclass 158) Processes and products which include a nonfiber additive which acts as a preservative for the paper or is an agent for preventing oxidation.
(1) Note. Processes and products which preserve paper merely by exclusion of the atmosphere are not included, such processes and products are usually classified on the basis of the identity of the nonfiber additive.
SEE OR SEARCH CLASS
252, Compositions,
380+, for preservative agents.
426, Foods and Edible Material: Processes, Compositions, and Products,
138, 178+, for food products having antioxidants and subclass 228, for a food antioxidant, per se.
