Granted Patent
Utility
US 5,807,969 · App. 08/705,099
Preparation of poly-O-hydroxyamides and poly O-mercaptoamides
Inventors:
Recai Sezi, Hellmut Ahne, Eberhard Kuehn, Roland Gestigkeit
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Aug 28, 1996
Inventors
Recai Sezi
Hellmut Ahne
Eberhard Kuehn
Roland Gestigkeit
Assignee (at issue)
Siemens Aktiengesellschaft
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.