Patents by Inventor Archibald W. Pavlak

Archibald W. Pavlak 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).

  • Hearth structure
    Patent number: 4212636
    Abstract: Structure for an incinerator hearth is disclosed where the drop hole area of the hearth can be constructed entirely of standard shape, and thus readily available, fire brick rather than the special shapes previously necessary.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: July 15, 1980
    Inventor: Archibald W. Pavlak