Granted Patent
Utility
US 4,329,232 · App. 06/214,585
Method for measuring biomass viability
Inventor:
Eva J. McKenna
Patented Case
View Patent ↗
Granted: May 11, 1982
Filed: Dec 9, 1980
Inventor
Eva J. McKenna
Assignee (at issue)
Union Carbide 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.