Granted Patent
Utility
US 5,114,576 · App. 07/595,502
Prevention of contaminants buildup in captured and recirculated water systems
Inventors:
Lee C. Ditzler, Ronald Lemberger, Willam K. McGrane, Jerry F. Choy
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Oct 11, 1990
Inventors
Lee C. Ditzler
Ronald Lemberger
Willam K. McGrane
Jerry F. Choy
Assignee (at issue)
Trineos
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.