Patents by Inventor William K. Shero, deceased

William K. Shero, deceased 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).

  • Carpet and upholstery cleaner/extractor
    Patent number: 5920953
    Abstract: A cleaning and extracting unit which includes a housing comprising upper and lower housing sections removably attached to each other. When attached to each other, the lower and upper housing sections collectively define a pair of vacuum pump chambers and a fluid pump chamber. The unit may be provided with one vacuum pump which is received into one of the vacuum pump chambers, or a pair of vacuum pumps which are connected to each other in series and received into respective ones of the vacuum pump chambers. The unit is also provided with a fluid pump which is received into the fluid pump chamber, as well as a heater which is received into a heater chamber defined by the lower housing section.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: July 13, 1999
    Assignee: Windsor Industries, Inc.
    Inventor: William K. Shero, deceased
  • Combined portable carpet and upholstery cleaner
    Patent number: D420473
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: February 8, 2000
    Inventor: William K. Shero, deceased