Granted Patent
Utility
US 6,229,040 · App. 09/403,263
3-cyano-2,4,5-trifluoro-benzoyl fluoride and intermediate products for the production thereof
Inventors:
Albrecht Marhold, Peter Wolfrum
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Oct 15, 1999
Inventors
Albrecht Marhold
Peter Wolfrum
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.