Granted Patent
Utility
US 5,613,769 · App. 08/461,555
Tir lens apparatus having non-circular configuration about an optical axis
Inventors:
William A. Parkyn, David G. Pelka
Patented Case
View Patent ↗
Granted: Mar 25, 1997
Filed: Jun 5, 1995
Inventors
William A. Parkyn
David G. Pelka
Assignee (at issue)
TIR Technologies, Inc.
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.