Granted Patent
Utility
US 5,084,215 · App. 07/260,156
Process for purification of phospholipids
Inventors:
John J. Kearns, Paul A. Tremblay
Patented Case
View Patent ↗
Granted: Jan 28, 1992
Filed: Oct 20, 1988
Inventors
John J. Kearns
Paul A. Tremblay
Assignee (at issue)
The Liposome Company, 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.