Granted Patent
Utility
US 5,766,485 · App. 08/468,208
Color removal from effluent waters
Inventors:
Christopher Lind, David Kennedy
Patented Case
View Patent ↗
Granted: Jun 16, 1998
Filed: Jun 6, 1995
Inventors
Christopher Lind
David Kennedy
Assignee (at issue)
General Chemical Company
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.