Patents by Inventor Mao S. Lin

Mao S. Lin 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).

  • Junction box
    Patent number: 5183967
    Abstract: A junction box comprising a cover (1) covered on a base (3) with an adapter (2) secured therein for connecting a telephone line to an exchange line, wherein the cover has pressure rods (11) pressed downwards against the adapter (2); the base (3) has stop bars (34) and lugs (33) at two opposite locations for supporting and holding the adapter (2) in place; the adapter (2) has a bottom projection (22) hooked in a groove (35) on the base (3) for positioning.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: February 2, 1993
    Inventor: Mao S. Lin