Granted Patent
Utility
US 4,617,421 · App. 06/718,970
Photovoltaic cell having increased active area and method for producing same
Inventors:
Prem Nath, Masatsugu Izu, Herbert C. Ovshinsky, Avtar Singh
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Apr 1, 1985
Inventors
Prem Nath
Masatsugu Izu
Herbert C. Ovshinsky
Avtar Singh
Assignee (at issue)
Sovonics Solar Systems
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.