Granted Patent
Utility
US 4,416,708 · App. 06/339,672
Method of manufacture of high speed, high power bipolar transistor
Inventors:
Edgar Abdoulin, Alexander Lidow
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Jan 15, 1982
Inventors
Edgar Abdoulin
Alexander Lidow
Assignee (at issue)
International Rectifier Corporation
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.