Granted Patent
Utility
US 6,428,677 · App. 08/973,078
Bromide removal
Inventors:
David Macdonald Bonnick, Roger Roydon Ford
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Mar 20, 1998
Inventors
David Macdonald Bonnick
Roger Roydon Ford
Assignee (at issue)
United States Filter 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.