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These patents describe several designs of the "clasp-locker". Later design patents of the fastener describe opposite elements on each side that are identical to each other and fit together by the engaging of "pintles" and "sockets." In his patent U.S.P. 557,207 of 1896 is a description mostly like the zipper of today.
In 1892, Whitcomb L. Judson, an American inventor from Chicago, patented the original design from which the modern device evolved. [1] The zipper gets its name from a brand of rubber boots (or galoshes) it was used on in 1923. The galoshes could be fastened with a single zip of the hand, and soon the hookless fasteners came to be called "Zippers".
Using a hook-and-eye device, Judson intended for this earliest form of the zipper to be used on shoes. He also conceived the idea of the slide fastener mechanism in conjunction with the invention of the zipper. Patents were issued to Judson for the zipper in 1891, 1894, and 1905. [36] [37] 1893 Spectroheliograph
In 2006, Sundbäck was honored by inclusion in the National Inventors Hall of Fame for his work on the development of the zipper. [6] [7] On April 24, 2012, the 132nd anniversary of Sundbäck’s birth, Google changed the Google logo on its homepage to a Google Doodle of the zipper, which when opened revealed the results of a search for Gideon Sundbäck.
As of February 2019, the trademark, reg. no. 4,829,304, remains "Issued and Active" at the U.S. Patent and Trademark Office. [33] Dumpster Trademark was cancelled in 2015. [34] [35] Trademarked by Dempster Brothers, Inc. in 1963, dumpster is originally a portmanteau of the word dump and the last name Dempster.
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Having little prior experience in plastics, the task was daunting for Behr, but he surpassed everyone in the world within a year. As he improved the process and increased line speeds to 60, then 90, then 150 and finally 300 feet per minute in 1972, he had to design new equipment. Some were patented and some were kept as trade secrets by Dow.
Moderna wins COVID shot patent case against Pfizer-BioNTech in Europe. May 17, 2024 at 2:14 PM (Reuters) -Moderna said on Friday the European Patent Office had upheld the validity of one of the ...