Granted Patent
Utility
US 5,370,798 · App. 08/128,274
Method for capturing metal ions
Inventors:
Takao Uchiyama, Naoshi Imaki, Yuki Takuma, Masato Aiura, Eri Hosono
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Sep 29, 1993
Inventors
Takao Uchiyama
Naoshi Imaki
Yuki Takuma
Masato Aiura
Eri Hosono
Assignee (at issue)
Mitsubishi Kasei 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.