Granted Patent
Utility
US 4,677,301 · App. 06/681,843
Alignment apparatus
Inventors:
Akikazu Tanimoto, Toshio Matsuura, Seiro Murakami, Makoto Uehara, Kyoichi Suwa
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Dec 14, 1984
Inventors
Akikazu Tanimoto
Toshio Matsuura
Seiro Murakami
Makoto Uehara
Kyoichi Suwa
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.