Granted Patent
Utility
US 5,915,072 · App. 08/853,040
Infrared heater apparatus
Inventors:
John Campbell, Charles Goldberg
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Apr 30, 1997
Inventors
John Campbell
Charles Goldberg
Assignee (at issue)
HILL-ROM, 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.