Granted Patent
Utility
US 5,312,757 · App. 07/871,952
Sample distributing method
Inventors:
Sinya Matsuyama, Takashi Yamada
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Apr 21, 1992
Inventors
Sinya Matsuyama
Takashi Yamada
Assignee (at issue)
Olympus Optical Co., Ltd.
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.