Granted Patent
Utility
US 4,230,463 · App. 05/832,481
Multicomponent membranes for gas separations
Inventors:
Jay Henis, Mary K. Tripodi
Patented Case
View Patent ↗
Granted: Oct 28, 1980
Filed: Sep 13, 1977
Inventors
Jay Henis
Mary K. Tripodi
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.