Patents by Inventor David M. Tillstrom

David M. Tillstrom 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: 6817069
    Abstract: An apparatus for connecting a strap to a pair of eyeglasses is disclosed which may include first and second connection devices and first and second springs. Each connection device may have a loop, a first portion, and a second portion. Each loop may be used to attach the respective connection device to a temple leg of a pair of eyeglasses. Each loop may be separate and distinct from the strap. A method is disclosed comprising bending a first portion of the first connection device from an original state so that the first portion of the first connection device can fit into the first spring. The method may also include inserting the first connection device into the first spring, and bending the first portion of the first connection device back to the original state of the first portion so that the first connection device becomes locked onto the first spring.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: November 16, 2004
    Inventor: David M. Tillstrom