Granted Patent
Utility
US 5,535,563 · App. 08/002,305
Fitted manufactured stone sections
Inventors:
Richard L. Brown, Donald W. Ferguson, Kenneth Brown, Robert W. Heath, Jr.
Patented Case
View Patent ↗
Granted: Jul 16, 1996
Filed: Jan 8, 1993
Inventors
Richard L. Brown
Donald W. Ferguson
Kenneth Brown
Robert W. Heath, Jr.
Assignee (at issue)
Stone Products, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.