Granted Patent
Utility
US 4,997,598 · App. 07/457,704
Vaporizing device and method
Inventor:
Mustafa Aleem-Uddin
Patented Case
View Patent ↗
Granted: Mar 5, 1991
Filed: Feb 6, 1990
Inventor
Mustafa Aleem-Uddin
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.