Granted Patent
Utility
US 5,324,852 · App. 07/974,825
4-Substituted-2-hydroxybutanoates and a process for producing them
Inventors:
Naoyuki Yoshida, Kazutoshi Miyazawa
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Nov 16, 1992
Inventors
Naoyuki Yoshida
Kazutoshi Miyazawa
Assignee (at issue)
Chisso 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.