Granted Patent
Utility
US 4,774,365 · App. 07/125,516
Pervaporation process for separating alcohols from ethers
Inventors:
Michael S. Chen, Robert Michael Eng, Jerome L. Glazer, Charles Glen Wensley
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Nov 25, 1987
Inventors
Michael S. Chen
Robert Michael Eng
Jerome L. Glazer
Charles Glen Wensley
Assignee (at issue)
Air Products and Chemicals, 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.