Granted Patent
Utility
US 4,396,551 · App. 06/314,343
Method for the recovery of Group VIII noble metal solid complexes
Inventors:
Yoshitoshi Tsunoda, Shimpei Tomita, Chihiro Miyazawa, Yasuro Omori
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Oct 23, 1981
Inventors
Yoshitoshi Tsunoda
Shimpei Tomita
Chihiro Miyazawa
Yasuro Omori
Assignee (at issue)
Mitsubishi Chemical Industries, 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.