Granted Patent
Utility
US 5,552,302 · App. 08/282,151
Methods and compositions for production of human recombinant placental ribonuclease inhibitor
Inventors:
Martin K. Lewis, John Shultz
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Jul 27, 1994
Inventors
Martin K. Lewis
John Shultz
Assignee (at issue)
Promega Corporation
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.