Granted Patent
Utility
US 4,551,826 · App. 06/708,388
Multiple beam lens transducer with collimator for sonar systems
Inventor:
Jacob A. Kritz
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: Mar 8, 1985
Inventor
Jacob A. Kritz
Assignee (at issue)
Sperry Corp.
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.