Patents by Inventor Mark H. Sadowski

Mark H. Sadowski 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).

  • Umbrella with detachable cover
    Patent number: 4979535
    Abstract: An umbrella has a frame with a shaft and a series of ribs hingedly secured thereto for movement between a folded position and an extended position. The shaft has a tip projecting beyond the ribs, and the ribs having free end portions remote from the shaft. A cover has a central aperture receiving the shaft tip, and the cover is detachably retained in assembly with the shaft tip. The cover also has a periphery with a series of loops spaced therearound. A series of connectors are provided, each having a body with an aperture in one end detachably receiving a free end portion of a rib and a groove at an opposite end detachably receiving a loop to detachably retain the cover in place.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: December 25, 1990
    Inventors: Mark H. Sadowski, Stephen L. Levitan
  • Angled umbrella handle
    Patent number: D326184
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: May 19, 1992
    Inventors: Mark H. Sadowski, Stephen L. Levitan