Patents by Inventor Delbert E. Graves

Delbert E. Graves 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).

  • Window shade, and method apparatus for manufacturing same
    Patent number: 4539239
    Abstract: A window shade which includes a sheet member formed from a material having the characteristics, with respect to strength, formability and shape retention, of plastics, which sheet member, by reason of the formation of one or more continuous cut lines, the penetration of which are controlled to rather carefully defined parameters, can be quickly and accurately sized to width at the time of installation by the final user, a method of manufacturing a window shade, and apparatus for manufacturing a window shade.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: September 3, 1985
    Assignee: Newell Companies, Inc.
    Inventors: Delbert E. Graves, George E. Craft