Granted Patent
Utility
US 5,352,974 · App. 07/931,189
Stud sensor with digital averager and dual sensitivity
Inventor:
Charles E. Heger
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Aug 14, 1992
Inventor
Charles E. Heger
Assignee (at issue)
Zircon 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.