Patents by Inventor David L. Thor

David L. Thor 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).

  • Tamperproof overcap
    Patent number: 4271972
    Abstract: A tamperproof, molded plastic overcap for a container having a plug closure.
    Type: Grant
    Filed: July 24, 1979
    Date of Patent: June 9, 1981
    Assignee: Container Corporation of America
    Inventor: David L. Thor