Granted Patent
Utility
US 4,660,966 · App. 06/845,637
Optical alignment apparatus
Inventors:
Kinya Kato, Kazumasa Endo
Patented Case
View Patent ↗
Granted: Apr 28, 1987
Filed: Mar 28, 1986
Inventors
Kinya Kato
Kazumasa Endo
Assignee (at issue)
Nippon Kogaku K.K.
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.