Granted Patent
Utility
US 5,287,332 · App. 07/903,428
Acoustic particle acceleration sensor and array of such sensors
Inventor:
John D. Lea
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Jun 24, 1992
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.