Granted Patent
Utility
US 6,215,298 · App. 09/199,717
Dual range tachometer
Inventors:
John V. Westberg, Karl G. Rindt, Timothy D. Joyce
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Nov 25, 1998
Inventors
John V. Westberg
Karl G. Rindt
Timothy D. Joyce
Assignee (at issue)
Auto Meter Products, 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.