Granted Patent
Utility
US 4,909,990 · App. 07/092,177
Immunoassay apparatus
Inventors:
Myron J. Block, Steve J. Lackie, Thomas R. Glass
Patented Case
View Patent ↗
Granted: Mar 20, 1990
Filed: Sep 2, 1987
Inventors
Myron J. Block
Steve J. Lackie
Thomas R. Glass
Assignee (at issue)
Myron J. Block
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.