Zipper storage bag
From Wikipedia, the free encyclopedia
Zipper storage bags, were patented by Robert W. Vergobbi on May 18, 1954. In the same year, Minigrip licensed them as pencil bags. Not until 1968 did Dow Chemical Company (already known for Styrofoam and Saran Wrap) begin marketing for them.[1] The bags are known more commonly under the genericized trademark Ziploc.
[edit] References
History. Retrieved on December 26, 2006. Zip-Pak history page http://www.freepatentsonline.com/6471402.html