Granted Patent
Utility
US 6,576,698 · App. 09/721,841
Process for the preparation of vinyl ester/(meth)acrylate copolymers
Inventor:
Hans-Peter Weitzel
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Nov 24, 2000
Inventor
Hans-Peter Weitzel
Assignee (at issue)
WACKER POLYMER SYSTEMS GMBH & CO. KG
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.