Patents by Inventor Michael A. Canfield

Michael A. Canfield 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).

  • Apparatus and system to market products via internet
    Publication number: 20090106120
    Abstract: A system to market products via the Internet pays an Internet surfer to view and evaluate offers for sale on the Internet.
    Type: Application
    Filed: September 4, 2008
    Publication date: April 23, 2009
    Inventor: Michael A. Canfield
  • Portable tent--cot
    Patent number: 5210888
    Abstract: A cot--tent includes bedding and a tent for covering the bedding. The tent and bedding are supported on a frame which includes a pair of hollow tubular legs, an upright U-shaped tent support, and a pair of hinge members. The tent support and legs are pivotally attached to the hinge members. Each hinge member comprises a pair of interconnected opposing panel portions. Support plugs are inserted in the ends of the tubular legs to strengthen the legs.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: May 18, 1993
    Inventor: Michael A. Canfield
  • Portable insulated tent--cot
    Patent number: 5018227
    Abstract: A cot-tent which insulates against the loss of heat by convection, conduction, and radiation and which is unusually simple to manufacture, use and store.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: May 28, 1991
    Inventor: Michael A. Canfield