Patents by Inventor Bernard S. Liebman

Bernard S. Liebman 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: 4248927
    Abstract: There are disclosed apparatus and methods for incorporating feathers and downs into synthetic fiber. In one embodiment, raw polyester staple is processed into batting by a garnetting machine or the like, after which a quantity of natural feathers and downs is securely implanted in the polyester fiber using an impregnation device. The polyester sheets containing the impregnated plumage may then be folded and cut to the required size and thickness for further use.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: February 3, 1981
    Inventor: Bernard S. Liebman