Granted Patent
Utility
US 4,964,301 · App. 07/342,932
Chip level indicator with differential transformer
Inventor:
Claes G. Lysen
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Apr 25, 1989
Inventor
Claes G. Lysen
Assignee (at issue)
Kamyr AB
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.