Manufacture of bags
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 5, 1989
Grant Date -
N/A
app pub date -
May 11, 1988
filing date -
May 11, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A web comprising two end-to-end series of bags of synthetic plastics material is disclosed. The bags of each series are joined to one another by structures comprising weld lines and lines of weakening. The two series are joined to one another by a structure comprising either a line of weakening or a line of weakening with welds on each side thereof. The web is constituted by a tube which is extruded with two sets of inter-engagable ribs. Each series of bags is punched with a row of tractor holes. In another form there is a single end-to-end series of bags.
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Family
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Cited Art Landscape
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