Granted Patent
Utility
US 4,265,763 · App. 06/086,211
Permeator apparatus
Inventors:
Wayne A. Bollinger, Roger G. Guay
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Oct 18, 1979
Inventors
Wayne A. Bollinger
Roger G. Guay
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.