Granted Patent
Utility
US 5,144,139 · App. 07/732,596
Capillary flow device
Inventors:
Robert S. Hillman, Michael E. Cobb, Jimmy D. Allen, Ian Gibbons, Vladimir E. Ostoich, Laura J. Winfrey
Patented Case
View Patent ↗
Granted: Sep 1, 1992
Filed: Jul 19, 1991
Inventors
Robert S. Hillman
Michael E. Cobb
Jimmy D. Allen
Ian Gibbons
Vladimir E. Ostoich
Laura J. Winfrey
Assignee (at issue)
Biotrack, LLC
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.