Patents by Inventor Richard Wytko

Richard Wytko 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).

  • File folder box
    Patent number: 4403729
    Abstract: A container in which the container walls, the bottom closure, the reinforcing panels and the cover are unitary. The closure tab on the front closure flap is inserted into an aperture in the front panel and extends between the front panel and the front reinforcing panel.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: September 13, 1983
    Assignee: Weyerhaeuser Company
    Inventor: Richard Wytko
  • Container
    Patent number: 4373660
    Abstract: A container in which the container walls, the bottom closure, the reinforcing panels and the cover are unitary.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: February 15, 1983
    Assignee: Weyerhaeuser Company
    Inventor: Richard Wytko
  • Container
    Patent number: 4372477
    Abstract: A container in which the container walls, the bottom closure and the reinforcing panels are unitary.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: February 8, 1983
    Assignee: Weyerhaeuser Company
    Inventor: Richard Wytko
  • Single-piece container blank with multi-ply end panels
    Patent number: 3940053
    Abstract: A single-piece container blank is erectable into a container having multi-ply end panels with stacking tabs extending upwardly therefrom. The multi-ply end panels offer stacking strength while the stacking tabs stabilize a resulting stack of containers. A multi-ply side panel is also a feature in one embodiment.
    Type: Grant
    Filed: August 1, 1974
    Date of Patent: February 24, 1976
    Assignee: Weyerhaeuser Company
    Inventors: Jack D. Putman, Richard Wytko