US PATENT SUBCLASS 53 / 460
.~ Envelope or triangular flap fold

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

396  DF  METHODS {22}
460.~ Envelope or triangular flap fold

DEFINITION

Classification: 53/460

Envelope or triangular flap fold:

(under subclass 396) Methods in which the cover produced has sides contacting opposite portions of the contents which are connected by a single fold or crease or in which the packaging involves folding triangular flaps to form a flat package with the flaps overlapping centrally of one side of the package.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206, for wrapping machines making pocket or envelope-type packages.