Granted Patent
Utility
US 5,352,832 · App. 07/993,932
Asymmetric process for preparing florfenicol, thiamphenicol chloramphenicol and oxazoline intermediates
Inventors:
Guang-Zhong Wu, Wanda I. Tormos
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Dec 18, 1992
Inventors
Guang-Zhong Wu
Wanda I. Tormos
Assignee (at issue)
SCHERING 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.