Granted Patent
Utility
US 4,801,759 · App. 07/082,569
Process for producing vicinal diols
Inventors:
Rainer Siegmeier, Gu Prescher, Helmut Maurer
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Aug 7, 1987
Inventors
Rainer Siegmeier
Gu Prescher
Helmut Maurer
Assignee (at issue)
Degussa AG
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.