Granted Patent
Utility
US 4,646,276 · App. 06/848,752
Acoustic fish behavioral control device
Inventors:
Janusz J. Kowalewski, Jerry W. Forest, Alan E. Christie, Paul H. Patrick
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Apr 7, 1986
Inventors
Janusz J. Kowalewski
Jerry W. Forest
Alan E. Christie
Paul H. Patrick
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.