Patents by Inventor Andrzej Robert BIERNACKI

Andrzej Robert BIERNACKI 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).

  • Screed system
    Patent number: 9045869
    Abstract: A screed system, having: a first elevatable rail; a second elevatable rail; a screed bar positioned below the first and second rails and supported by the first and second elevatable rails by respective first and second rotatable hinges, the screed bar moveable along the first and second rails and rotatable relative to the first and second rails at both the respective first and second rotatable hinges.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: June 2, 2015
    Inventors: Andrzej Robert Biernacki, Waldemar Domzal
  • SCREED SYSTEM
    Publication number: 20130183095
    Abstract: A screed system, having: a first elevatable rail; a second elevatable rail; a screed bar positioned below the first and second rails and supported by the first and second elevatable rails by respective first and second rotatable hinges, the screed bar moveable along the first and second rails and rotatable relative to the first and second rails at both the respective first and second rotatable hinges.
    Type: Application
    Filed: July 11, 2012
    Publication date: July 18, 2013
    Inventors: Andrzej Robert BIERNACKI, Waldemar DOMZAL