Granted Patent
Utility
US 4,944,926 · App. 07/226,883
Method to treat rhodium-containing solutions
Inventors:
Akhtar Osman, William Gordon Bradford
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Aug 1, 1988
Inventors
Akhtar Osman
William Gordon Bradford
Assignee (at issue)
Polytec GmbH
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.