Patents by Inventor Lewis R. Herbst

Lewis R. Herbst 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).

Prefabricated sound barrier wall

Patent number: D248571

Type: Grant

Filed: February 19, 1976

Date of Patent: July 18, 1978

Inventor: Lewis R. Herbst

Prefabricated sound barrier wall