Granted Patent
Utility
US 5,933,278 · App. 08/885,637
Monolithic multi-faceted mirror for combining multiple beams from different light sources by reflection
Inventors:
William T. Plummer, Jeffrey W. Roblee, Douglas S. Goodman
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Jun 30, 1997
Inventors
William T. Plummer
Jeffrey W. Roblee
Douglas S. Goodman
Assignee (at issue)
Polaroid 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.