Granted Patent
Utility
US 6,828,455 · App. 10/342,942
Preparation of styryl compounds
Inventors:
Josef-Walter Stawitz, Ulrich Feldhues
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Jan 15, 2003
Inventors
Josef-Walter Stawitz
Ulrich Feldhues
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.