Granted Patent
Utility
US 5,606,077 · App. 08/604,541
Method for the synthesis of organopolysiloxanes containing carbonate groups
Inventors:
Peter Lersch, Christian Weitemeyer
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Feb 21, 1996
Inventors
Peter Lersch
Christian Weitemeyer
Assignee (at issue)
Th. Goldschmidt. 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.