Granted Patent
Utility
US 5,857,589 · App. 08/752,768
Method and apparatus for accurately dispensing liquids and solids
Inventors:
David J. Cline, Steven L. Smith, Timothy S. Clark
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Nov 20, 1996
Inventors
David J. Cline
Steven L. Smith
Timothy S. Clark
Assignee (at issue)
Fluid Research 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.