|Mainly For Brummies But All Are Welcome To Join In The Birmingham Fun & Chat|
This is the place where Brummies come to chat about Birmingham old and new along with anything else that interests us. We have Quizzes, Pizzas, Local History, News, Politics, Wedding Cake, Plum Pudding, Champagne, Easter Eggs and, above all, Respect for our fellow members.
According to wikipedia, an early form of the Gore-Tex material was developed in 1966 and Gore-Tex wasn't patented until 1976
The GEOX patents were filed around 1994.
It is odd though that the name GEOX can be made from Gore-Tex.
"In 1966, John W. Cropper of New Ireland developed and constructed a machine for producing stretched polytetrafluoroethylene (PTFE) tape. Rather than file for a patent, however, Cropper chose to keep the process of creating expanded PTFE as a closely held trade secret and required his producer and its employees to sign confidentiality agreements.
Gore-Tex was co-invented by Wilbert L. Gore, Rowena Taylor and Gore's son, Robert W. Gore. In 1969, Bob Gore stretched heated rods of PTFE and created expanded polytetrafluoroethylene (ePTFE). His discovery of the right conditions for stretching PTFE was a happy accident, born partly of frustration. Instead of slowly stretching the heated material, he applied a sudden, accelerating yank. The solid PTFE unexpectedly stretched about 800%, forming a microporous structure that was about 70% air. It was introduced to the public under the trademark Gore-Tex. Bob Gore promptly applied for and obtained the following patents:
U.S. Patent 3,953,566, issued April 27, 1976, for a porous form of polytetrafluoroethylene with a micro-structure characterized by nodes interconnected by fibrils
U.S. Patent 4,187,390, issued February 5, 1980
U.S. Patent 4,194,041 on March 18, 1980 for a "waterproof laminate", together with Samuel Allen"