Patents by Inventor Charles C. L'Allemand

Charles C. L'Allemand 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).

  • Method of making a hollow article
    Patent number: 4277298
    Abstract: A method of making a hollow article with a fluorocarbon layer bonded thereto.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: July 7, 1981
    Assignee: The Cly-Del Manufacturing Company
    Inventor: Charles C. L'Allemand