Granted Patent
Utility
US 4,200,690 · App. 05/924,562
Immunoassay with membrane immobilized antibody
Inventors:
David Root, Francis X. Cole
Patented Case
View Patent ↗
Granted: Apr 29, 1980
Filed: Jul 14, 1978
Inventors
David Root
Francis X. Cole
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.