Patents by Inventor Charles E. McCormack

Charles E. McCormack has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4136715
    Abstract: A composite article fabricated by a process comprising (1) bringing into intimate contact two copolyetherester elastomers having melting points differing by at least C., the copolyetherester elastomer (A) of higher melting point being in the form of a plurality of oriented strands, tapes or films and (2) heating the resulting assembly to a temperature between the melting point of the two elastomers to cause fusion of copolyetherester elastomer (B) of lower melting point while maintaining the orientation of copolyetherester elastomer (A).
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: January 30, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles E. McCormack, Martin L. Brown