Granted Patent
Utility
US 5,850,849 · App. 08/486,813
Storage tank shutoff valve with double cam assembly
Inventor:
Chester W. Wood
Patented Case
View Patent ↗
Granted: Dec 22, 1998
Filed: Jun 7, 1995
Inventor
Chester W. Wood
Assignee (at issue)
Dover Associates, Inc.
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.