Granted Patent
Utility
US 4,507,334 · App. 06/547,012
Surface preparation for determining diffusion length by the surface photovoltage method
Inventor:
Alvin M. Goodman
Patented Case
View Patent ↗
Granted: Mar 26, 1985
Filed: Oct 31, 1983
Inventor
Alvin M. Goodman
Assignee (at issue)
RCA 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.