Granted Patent
Utility
US 6,570,486 · App. 09/289,441
Passive remote access control system
Inventors:
Marc Simon, Francois Lhomme, Christophe Leligne
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Apr 9, 1999
Inventors
Marc Simon
Francois Lhomme
Christophe Leligne
Assignee (at issue)
Delphi Automotive Systems
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.