Granted Patent
Utility
US 4,258,210 · App. 06/037,166
Process for manufacturing sodium pantothenate
Inventors:
Dieter Bartoldus, Emil A. Broger
Patented Case
View Patent ↗
Granted: Mar 24, 1981
Filed: May 8, 1979
Inventors
Dieter Bartoldus
Emil A. Broger
Assignee (at issue)
HOFFMANN-LA ROCHE 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.