Granted Patent
Utility
US 6,586,610 · App. 10/135,286
Method for removing coumafos from beeswax
Inventor:
Dieter Ulrich
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Apr 30, 2002
Inventor
Dieter Ulrich
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.