Granted Patent
Utility
US 6,482,897 · App. 08/907,202
Process for producing ABS moulding compositions having a high rubber content
Inventors:
Richard Weider, Gisbert Michels, Frank Wingler
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Aug 6, 1997
Inventors
Richard Weider
Gisbert Michels
Frank Wingler
Assignee (at issue)
Bayer 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.