Granted Patent
Utility
US 4,335,313 · App. 06/149,106
Method and apparatus for aligning an opaque mask with an integrated circuit wafer
Inventors:
Justin Kreuzer, David H. Kittell
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: May 12, 1980
Inventors
Justin Kreuzer
David H. Kittell
Assignee (at issue)
PerkinElmer, Inc.
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.