Granted Patent
Utility
US 4,545,973 · App. 06/502,787
Complex metal chalcogenides
Inventor:
James P. King
Patented Case
View Patent ↗
Granted: Oct 8, 1985
Filed: Jun 9, 1983
Inventor
James P. King
Assignee (at issue)
Pennwalt 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.