Granted Patent
Utility
US 5,308,985 · App. 07/851,590
Wide-angle passive infrared radiation detector
Inventor:
Wade Lee
Patented Case
View Patent ↗
Granted: May 3, 1994
Filed: Mar 16, 1992
Inventor
Wade Lee
Assignee (at issue)
Intelectron Products 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.