Patents by Inventor Jan Hakan Weststrom

Jan Hakan Weststrom 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).

  • Page-turner for books and the like
    Patent number: 3939587
    Abstract: A page-turner for books contains a page-turning roller which can be moved from one side of the open book to the other, and which can also be rotated in the desired direction. The unturned pages of the book are kept in position by means of two page retainers.
    Type: Grant
    Filed: February 4, 1974
    Date of Patent: February 24, 1976
    Inventor: Jan Hakan Weststrom