Granted Patent
Utility
US 5,892,652 · App. 08/770,720
Sensitive key device having a detective surface in direct contact with a plate
Inventors:
Jean-Michel Bony, Fabrice Frappereau, Kim Ly Kha, Jean-Pierre Nugeyre
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Dec 19, 1996
Inventors
Jean-Michel Bony
Fabrice Frappereau
Kim Ly Kha
Jean-Pierre Nugeyre
Assignee (at issue)
Compagnie Europeenne pour l'Equipement Menager-Cepem
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.