Granted Patent
Utility
US 6,133,048 · App. 08/935,537
Assay reagents and devices
Inventors:
Yvonne E. Penfold, David Alan Percival
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Sep 23, 1997
Inventors
Yvonne E. Penfold
David Alan Percival
Assignee (at issue)
Unilever Patent Holdings B.V.
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.