Granted Patent
Utility
US 5,975,122 · App. 08/968,325
Replaceable flow-control assembly for use in a fluid flow line
Inventors:
Larry H. Hazen, Robert L. Claney, Donald K. Day
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Nov 12, 1997
Inventors
Larry H. Hazen
Robert L. Claney
Donald K. Day
Assignee (at issue)
Fisher Controls International LLC
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.