Granted Patent
Utility
US 4,149,033 · App. 05/851,506
Acoustic coupler assembly
Inventors:
Matthew J. Costello, Albert M. De Luca, Thomas K. Saunders, James McGuire
Patented Case
View Patent ↗
Granted: Apr 10, 1979
Filed: Nov 14, 1977
Inventors
Matthew J. Costello
Albert M. De Luca
Thomas K. Saunders
James McGuire
Assignee (at issue)
Graphic Sciences, 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.