Granted Patent
Utility
US 5,390,155 · App. 08/152,357
Acoustic particle acceleration sensor and array of such sensors
Inventor:
John D. Lea
Patented Case
View Patent ↗
Granted: Feb 14, 1995
Filed: Nov 15, 1993
Inventor
John D. Lea
Assignee (at issue)
Unisys 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.