Granted Patent
Utility
US 4,897,287 · App. 07/254,252
Metallization process for an integrated circuit
Inventors:
Henry Berger, Gretchen Adema
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Oct 6, 1988
Inventors
Henry Berger
Gretchen Adema
Assignee (at issue)
The BOC Group Limited
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.