Patents by Inventor Robert L. Forkish

Robert L. Forkish 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).

  • Anti-burglar window bars
    Patent number: 4633612
    Abstract: Anti-burglar window bars for universal installation in double hung windows wherein preferably the lower sash remains operable to be closed and opened for ventilation with the bar set by Vernier type adjustment and disposed between opposite jambs on trunnion plates fastened into the jamb channels and secured preferably by the bolt of a padlock.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: January 6, 1987
    Inventor: Robert L. Forkish