Granted Patent
Utility
US 5,188,946 · App. 07/860,684
Process and device for sequential microbial enrichment in a single apparatus
Inventors:
N. Robert Ward, Philip J. Lozier
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: Mar 30, 1992
Inventors
N. Robert Ward
Philip J. Lozier
Assignee (at issue)
BIOCONTROL SYSTEMS, INC.
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.