US PATENT SUBCLASS 53 / 136.3
.~.~.~ To seal package

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

128.1  DF  WITH COVER-ADJUNCT APPLICATION OR FORMATION {13}
135.1  DF  .~ Adjunct comprising nonencircling strip, e.g., stamp, label or gap filler {2}
136.1  DF  .~.~ Applied to package {2}
136.3.~.~.~ To seal package {2}
136.4  DF  .~.~.~.~> Box
136.5  DF  .~.~.~.~> Bag

DEFINITION

Classification: 53/136.3

To seal package:

(under subclass 136.1) Apparatus wherein the strip is intended to function to prevent contents from escaping or to keep contaminating material from entering the package or hold portions of the cover in closed position.

(1) Note. An envelope is included as a package in this subclass. An envelope is not considered to be three dimensional.