Granted Patent
Utility
US 6,139,872 · App. 08/917,049
Method of producing a vitamin product
Inventor:
Leo Walsh
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Aug 13, 1997
Inventor
Leo Walsh
Assignee (at issue)
Henkel Limited
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.