Patents by Inventor William H. Zwick

William H. Zwick 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).

  • Burial vault
    Patent number: 3983667
    Abstract: A burial vault formed from concrete which includes a hollow chamber having an open end closed by an end plate connected to said chamber by a plurality of bolts. An annular resilient seal is interposed between said end plate and the adjacent chamber end. Said seal is fixedly connected to said end plate and is bindingly retained between said end plate and chamber by said bolts connecting said end plate to said chamber.
    Type: Grant
    Filed: January 14, 1975
    Date of Patent: October 5, 1976
    Inventor: William H. Zwick
  • Vault
    Patent number: RE29532
    Abstract: .[.A burial.]. .Iadd.An underground .Iaddend.vault formed from concrete which includes a hollow chamber having an open end closed by an end plate connected to said chamber by a plurality of bolts. .[.An annular.]. .Iadd.A .Iaddend.resilient seal is interposed between said end plate and the adjacent chamber end. Said seal is fixedly connected to said end plate and is bindingly retained between said end plate and chamber by said bolts connecting said end plate to said chamber.
    Type: Grant
    Filed: February 8, 1977
    Date of Patent: February 7, 1978
    Inventor: William H. Zwick