JOHNSON, Judge.
This is an appeal from the decision of the Board of Appeals affirming the action of the Primary Examiner in finally rejecting claims 1, 4, and 5 of appellants' application, serial No. 721,880, for a patent on a fungistatic wrapper.
Appellants discovered that by bringing dehydroacetic acid into close association with various foods an increased resistance to microorganisms could be imparted to the foods and the growth of such organisms thus prevented...
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