Apparatus and method for making Z-folded zippered film

United States of America Patent

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Sep 10, 1991
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N/A
app pub date
Sep 27, 1990
filing date
Sep 27, 1990

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Expired

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Abstract

A method and apparatus for producing rolls of thermoplastic film stock wherein zipper elements are interlocked for structural support while the web is open, resembling a 'Z' in cross-section, and ready for use on container and packaging machines.

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Patent Owner(s)

Patent Owner	Address
ZIP-PAK INC	1800 SYCAMORE ROAD P O BOX 757 MANTENO ILLINOIS 60950

International Classification(s)

B65H:HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Pawloski, James C	Bourbonnais, IL	65	1768
Zieke, Larry M	Midland, MI	11	545

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Apparatus and method for making Z-folded zippered film

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07589178

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PATENT NO	5047002
SERIAL NO	07589178
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07589178

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