Granted Patent
Utility
US 5,094,641 · App. 07/561,540
Apparatus and method for protecting, installing and removing mercury-vapor lamps
Inventors:
Roger McCleary, Robert S. Allegretto
Patented Case
View Patent ↗
Granted: Mar 10, 1992
Filed: Aug 1, 1990
Inventors
Roger McCleary
Robert S. Allegretto
Assignee (at issue)
Federal Signal 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.