Granted Patent
Utility
US 4,686,039 · App. 06/813,753
Fluid separation module
Inventors:
Roger S. Otstot, Duane King
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Dec 26, 1985
Inventors
Roger S. Otstot
Duane King
Assignee (at issue)
Monsanto 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.