Granted Patent
Utility
US 6,099,342 · App. 09/089,889
Latch key mechanism
Inventor:
Guy Letourneau
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Jun 4, 1998
Inventor
Guy Letourneau
Assignee (at issue)
Whitaker & Company
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.