Granted Patent
Utility
US 4,552,846 · App. 06/572,108
Aspartase from a Bacillus subtilis
Inventor:
Yoshihisa Tsuda
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Jan 19, 1984
Inventor
Yoshihisa Tsuda
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.