Granted Patent
Utility
US 4,248,969 · App. 06/068,804
Regeneration of a immobilized enzyme system
Inventor:
Gene Lee
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Aug 22, 1979
Inventor
Gene Lee
Assignee (at issue)
UOP LLC
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.