Granted Patent
Utility
US 4,629,029 · App. 06/798,794
Multiple driver manifold
Inventor:
David W. Gunness
Patented Case
View Patent ↗
Granted: Dec 16, 1986
Filed: Nov 15, 1985
Inventor
David W. Gunness
Assignee (at issue)
Electro-Voice, 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.