Granted Patent
Utility
US 5,186,669 · App. 07/473,357
Incandescent lamp
Inventors:
Michael R. Holman, Richard A. Smith
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Feb 1, 1990
Inventors
Michael R. Holman
Richard A. Smith
Assignee (at issue)
Cooper Industries Holdings
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.