Granted Patent
Utility
US 6,202,540 · App. 09/532,104
Beverage quality control apparatus and method
Inventors:
Michael W. Johnson, Christopher J. Engler
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Mar 21, 2000
Inventors
Michael W. Johnson
Christopher J. Engler
Assignee (at issue)
Boyd Coffee Company
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.