Granted Patent
Utility
US 6,146,903 · App. 08/296,272
Method for determination of water treatment polymers
Inventors:
Pauline Weatherbury, William H. Stemson
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Aug 25, 1994
Inventors
Pauline Weatherbury
William H. Stemson
Assignee (at issue)
Strategic Diagnostics 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.