US PATENT SUBCLASS 229 / 80.5-- .~.~.~ Releasable or frangible bond (e.g., peel seal)

US PATENT SUBCLASS 229 / 80.5
.~.~.~ Releasable or frangible bond (e.g., peel seal)

Current as of: June, 1999
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229 /	HD	ENVELOPES, WRAPPERS, AND PAPERBOARD BOXES

68.1	DF	ENVELOPE {10}
76	DF	.~ Closures {3}
80	DF	.~.~ Sealing {4}
80.5		.~.~.~ Releasable or frangible bond (e.g., peel seal)

DEFINITION

Classification: 229/80.5

Releasable or frangible bond (e.g., peel seal):

(under subclass 80) Subject matter wherein two parts of the envelope (one of which is usually a closure flap) are secured together by a peelable or frangible adhering means (e.g., glue, heat seal, etc.) so that the parts may be easily separated without tearing to gain access to the interior of the envelope.

SEE OR SEARCH THIS CLASS, SUBCLASS:

123.1, for a box having a separate, peelable closure or securing element.

SEE OR SEARCH CLASS

383, Flexible Bags,

210+, for a bag having a releasable or frangible bond.

428, Stock Material or Miscellaneous Articles, 43, for a sheet, web or layer which has been weakened to facilitate tearing and subclasses 131+, particularly subclass 136, for sheet material having slits or apertures.