Granted Patent
Utility
US 4,673,149 · App. 06/848,710
Loudspeaker mounting system
Inventors:
Warren H. Grote, Frederick R. Leu
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Apr 7, 1986
Inventors
Warren H. Grote
Frederick R. Leu
Assignee (at issue)
American Trading and Production Corporation
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.