Granted Patent
Utility
US 5,934,795 · App. 08/665,889
Lens design for outdoor sign
Inventors:
Ronald F. Rykowski, Richard E. Albrecht
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Jun 19, 1996
Inventors
Ronald F. Rykowski
Richard E. Albrecht
Assignee (at issue)
Radiant Imaging, 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.