Granted Patent
Utility
US 4,903,756 · App. 06/906,524
Heat generator
Inventor:
Richard J. Monro
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Sep 12, 1986
Inventor
Richard J. Monro
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.