Zipper storage bag

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A Ziploc bag
A Ziploc bag

Zipper storage bags, were patented by Robert W. Vergobbi on May 18, 1954.[1] In the same year, Minigrip licensed them as pencil bags.[2] Not until 1968 did Dow Chemical Company (already known for Styrofoam and Saran Wrap) begin marketing for them. Design alterations have allowed for applications beyond household food storage.[3] The bags are known more commonly under the genericized trademark Ziploc.

[edit] References

  1. ^ United States Patent 6471402 - Formed stacking element integral with plastic storage bags
  2. ^ minigripdirect.com
  3. ^ Zipper Bags For Industrial and Commercial Use

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[edit] External links

http://www.grayspackaging.co.uk/top-slider-grip-bags---zip-lock-30-c.asp

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