Patents by Inventor John R. Hamlin

John R. Hamlin 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: 4121757
    Abstract: A partial interior end wall of a carton is formed from a pair of flaps, one of which has a projection which is sealed to the other flap providing improved wall structure in a carton formed from a nestable blank.
    Type: Grant
    Filed: January 24, 1978
    Date of Patent: October 24, 1978
    Assignee: Container Corporation of America
    Inventor: John R. Hamlin