Patents by Inventor Mao S. Wang

Mao S. Wang 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).

  • Patent number: 5551463
    Abstract: A skeleton for telescopic umbrella including a shank having a tab, a ring slidably fitted on said shank and having a slot adapted to receive the tab, a fixed collar fixedly mounted at an upper end of the shank, a plurality of expanders pivotally connected with the fixed collar at an end, a plurality of supporters each pivotally connected with a first intermediate portion of one of the expanders at an end, a plurality of first joints each pivotally connected with another end of respective one of the supporters, a plurality of first ribs pivotally connected with the fixed collar at an end and pivotally connected with the first joints at another end, each of the first ribs being pivotally connected with another end of the expanders at a second intermediate portion, a plurality of second ribs fixedly connected with respective first joints at an end, a plurality of second joints each pivotally connected with another end of the second ribs, a plurality of third ribs pivotally connected with respective second joints
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: September 3, 1996
    Inventor: Mao S. Wang