Granted Patent
Utility
US 5,521,852 · App. 08/146,576
Method and system for designing lighting installations
Inventors:
John D. Hibbs, Douglas J. Stang
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Oct 29, 1993
Inventors
John D. Hibbs
Douglas J. Stang
Assignee (at issue)
Holophane Lighting, 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.