Granted Patent
Utility
US 4,480,070 · App. 06/507,956
Compositions and process
Inventors:
Filippus Bosscher, John Penfold, Klaus Reich, Albertus Zandvoort
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Jun 27, 1983
Inventors
Filippus Bosscher
John Penfold
Klaus Reich
Albertus Zandvoort
Assignee (at issue)
The Upjohn Co.
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.