Granted Patent
Utility
US 4,468,371 · App. 06/399,920
Immunoassay test slide
Inventors:
Anthony B. Chen, Richard A. Harte, Nancy K. Kaufman
Patented Case
View Patent ↗
Granted: Aug 28, 1984
Filed: Jul 19, 1982
Inventors
Anthony B. Chen
Richard A. Harte
Nancy K. Kaufman
Assignee (at issue)
Daryl Laboratories, 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.