Granted Patent
Utility
US 4,684,807 · App. 06/733,854
Flow contoured electron capture detector cell
Inventor:
Gregory J. Wells
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: May 13, 1985
Inventor
Gregory J. Wells
Assignee (at issue)
Varian, 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.