Granted Patent
Utility
US 4,673,799 · App. 06/707,262
Fluidized bed heater for semiconductor processing
Inventor:
Imad Mahawili
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Mar 1, 1985
Inventor
Imad Mahawili
Assignee (at issue)
Focus Semiconductor Systems, 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.