Granted Patent
Utility
US 6,559,775 · App. 09/272,441
Passive garage door opener using collision avoidance system
Inventor:
Joseph D. King
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Mar 19, 1999
Inventor
Joseph D. King
Assignee (at issue)
Lear Corporation
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.