Granted Patent
Utility
US 5,593,639 · App. 08/450,144
Blood-sampling vessel
Inventors:
Kenya Makino, Yoshitaka Yamakawa, Mitsuhiro Murata, Toshio Hayashi
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: May 26, 1995
Inventors
Kenya Makino
Yoshitaka Yamakawa
Mitsuhiro Murata
Toshio Hayashi
Assignee (at issue)
Japan Synthetic Rubber Corporation
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.