Granted Patent
Utility
US 5,674,987 · App. 08/279,374
Extraction of proteins from naturally occurring membranes
Inventor:
Don N. Gray
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Jul 22, 1994
Inventor
Don N. Gray
Assignee (at issue)
Anatrace, 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.