Patents by Inventor Michael F. Cowan

Michael F. Cowan 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).

  • Lightweight collapsible woodburning stove
    Patent number: 5119799
    Abstract: This invention is a small, very lightweight, fuel efficient, collapsible woodburning stove comprising six parts that form a combustion chamber, and four supporting legs, all fabricated from thin sheet metal by cutting or die-stamping, and all held together as a fully functional unit solely and entirely by a system of flanges produced by bending peripheral edges of the six parts and four supporting legs, and by four easily installed and removed pin-spring-chain assemblies.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: June 9, 1992
    Inventor: Michael F. Cowan