Granted Patent
Utility
US 5,127,542 · App. 07/561,427
Process and apparatus for proportioning liquids
Inventors:
Laura L. Deming, Gaston de los Reyes
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: Aug 1, 1990
Inventors
Laura L. Deming
Gaston de los Reyes
Assignee (at issue)
Millipore Corporation
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.