Granted Patent
Utility
US 4,529,996 · App. 06/484,762
Indium phosphide-boron phosphide heterojunction bipolar transistor
Inventor:
Krishna P. Pande
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Apr 14, 1983
Inventor
Krishna P. Pande
Assignee (at issue)
ALLIED CONSULTING, 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.