Granted Patent
Utility
US 6,044,860 · App. 09/241,247
Adjustable lockout device for knife gate valves
Inventor:
Steven K. Neu
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Feb 1, 1999
Inventor
Steven K. Neu
Assignee (at issue)
SPX Corporation
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.