Granted Patent
Utility
US 5,073,644 · App. 07/375,923
Method of preparing pure 3-butenyl triorganooxysilanes, the intermediate products 3,4-dichlorobutyl triorgano-oxysilanes and use of the final products
Inventors:
Ulrich Deschler, Peter Kleinschmit, Siegfried Wolff, Ewe-Hong Tan
Patented Case
View Patent ↗
Granted: Dec 17, 1991
Filed: Jul 6, 1989
Inventors
Ulrich Deschler
Peter Kleinschmit
Siegfried Wolff
Ewe-Hong Tan
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.