Patents by Inventor David E. Gurkin

David E. Gurkin 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).

  • Patent number: 4733424
    Abstract: A doormat housing comprising a swingingly retractable doormat tray seated within which is a doormat, is slidably affixed against one side of an entranceway door for use when the door is opened. In use, the doormat housing is slidingly moved to a lowered position whereat, upon the downward and outward swinging of the doormat tray, the tray with mat will seat against the floor or walking surface close to the entranceway.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: March 29, 1988
    Inventor: David E. Gurkin
  • Patent number: 4732279
    Abstract: A mail sorting case having a plurality of shelves, each of which is divided into a plurality of letter receiving slots defined by vertically extending, spaced, parallel partitions swingably supported from above, includes mechanism to swingingly withdraw the partitions to substantially horizontal position against the underside of the top panel of their respective shelves to provide for the sorting of flat mail by placement on the bottom panel of the respective shelves. Mechanism is also included for simultaneously erecting flats divider partitions swingingly supported against the bottom panel of the shelves and normally lying flat thereagainst.
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: March 22, 1988
    Inventor: David E. Gurkin