US PATENT SUBCLASS 229 / 929
VENTED ENVELOPE

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


229 /   HD   ENVELOPES, WRAPPERS, AND PAPERBOARD BOXES

929VENTED ENVELOPE

DEFINITION

Classification: 229/929

VENTED ENVELOPE:

(under the class definition) Envelope including means to facilitate or enable entrapped air to escape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

120, for a paperboard box having venting means.

SEE OR SEARCH CLASS

383, Flexible Bags,

100+, for a bag having venting means.