Granted Patent
Utility
US 5,477,049 · App. 08/184,122
Particle analysis method
Inventor:
Tadashi Kitamura
Patented Case
View Patent ↗
Granted: Dec 19, 1995
Filed: Jan 21, 1994
Inventor
Tadashi Kitamura
Assignee (at issue)
SEIKO INSTRUMENTS 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.