Granted Patent
Utility
US 4,852,104 · App. 07/071,801
Solid-state reader device for a cumulative operations measurement system
Inventor:
Eugene P. Finger
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Jul 10, 1987
Inventor
Eugene P. Finger
Assignee (at issue)
Curtis Instruments, 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.