Patents by Inventor Norman H. Allen

Norman H. Allen 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).

  • Watch crystal protector
    Patent number: D267239
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: December 14, 1982
    Assignee: RAS Industries, Inc.
    Inventor: Norman H. Allen