Granted Patent
Utility
US 5,970,791 · App. 09/069,064
Rotary meter having flow conditioning chambers for pressure pulse reduction
Inventors:
John J. Barczynski, Steven L. Johnson
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Apr 28, 1998
Inventors
John J. Barczynski
Steven L. Johnson
Assignee (at issue)
American Meter Company
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.