US PATENT SUBCLASS 53 / 381.3
.~.~ To open envelope

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

Internet Version by PATENTEC © 1999      Terms of Use


53 /   HD   PACKAGE MAKING

381.1  DF  MEANS TO OPEN OR ERECT RECEPTACLE {6}
381.2  DF  .~ With cutting means {1}
381.3.~.~ To open envelope

DEFINITION

Classification: 53/381.3

To open envelope:

(under subclass 381.2) Apparatus particularly adapted to provide access into a cover comprised of upper and lower planar sheets which, before access to the package, engaged each other and were united at their perimeters, which cover was intended to hold sheet-like goods.

(1) Note. An "envelope" with a bellows or gusset is not

included herein.