Granted Patent
Utility
US 5,124,869 · App. 07/342,012
Matrix device with magnetic heads, notably in thin layers
Inventor:
Jean-Claude Lehureau
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Apr 24, 1989
Inventor
Jean-Claude Lehureau
Assignee (at issue)
Thomson-CSF
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.