Granted Patent
Utility
US 4,500,726 · App. 06/613,136
Method for preparing N-benzyloxycarbonyl amino acids containing additional functionality
Inventor:
James A. Krogh
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: May 23, 1984
Inventor
James A. Krogh
Assignee (at issue)
PPG Industries, 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.