Granted Patent
Utility
US 5,443,722 · App. 08/252,092
Duplex strainer
Inventors:
Ashvin D. Desai, Robert Whritenour
Patented Case
View Patent ↗
Granted: Aug 22, 1995
Filed: Jun 1, 1994
Inventors
Ashvin D. Desai
Robert Whritenour
Assignee (at issue)
Mueller Steam Specialty
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.