Granted Patent
Utility
US 4,391,650 · App. 06/218,891
Method for fabricating improved complementary metal oxide semiconductor devices
Inventors:
Robert F. Pfeifer, Murray L. Trudel
Patented Case
View Patent ↗
Granted: Jul 5, 1983
Filed: Dec 22, 1980
Inventors
Robert F. Pfeifer
Murray L. Trudel
Assignee (at issue)
NCR 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.