Granted Patent
Utility
US 6,020,147 · App. 07/891,864
Chemical analysis apparatus and method
Inventors:
Patrick Guire, Melvin J. Swanson
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Jun 1, 1992
Inventors
Patrick Guire
Melvin J. Swanson
Assignee (at issue)
Surmodics, Inc.
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.