Granted Patent
Utility
US 6,300,518 · App. 09/816,340
Aqueous hydroxylamine solution
Inventors:
Naoshi Imai, Kouzou Toguro
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Mar 26, 2001
Inventors
Naoshi Imai
Kouzou Toguro
Assignee (at issue)
NISSAN CHEMICAL 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.