Granted Patent
Utility
US 4,448,404 · App. 06/499,024
Device for holding a sheet-like sample
Inventors:
Koji Ogawa, Yoshihiko Ohtsuki, Yoshihiko Kudo, Hideo Maeda, Naoto Kihara
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Jun 2, 1983
Inventors
Koji Ogawa
Yoshihiko Ohtsuki
Yoshihiko Kudo
Hideo Maeda
Naoto Kihara
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.