Patents Assigned to Design Specialties, Inc. - Justia Patents Search

Patents Assigned to Design Specialties, Inc.

Molded concrete and fiberglass panel to isolate wood burning stoves from floors and walls

Patent number: D257178

Type: Grant

Filed: August 18, 1978

Date of Patent: September 30, 1980

Assignee: Concrete Design Specialties, Inc.

Inventor: Jonathan Nasvik
Fireplace door

Patent number: D320849

Type: Grant

Filed: May 8, 1989

Date of Patent: October 15, 1991

Assignee: Design Specialties, Inc.

Inventor: Robert J. Ehmke

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