Granted Patent
Utility
US 4,640,821 · App. 06/756,149
Analysis apparatus
Inventors:
Dinesh I. MODY, James E. Rasmussen, Mikhail Y. Ryaboy
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Jul 16, 1985
Inventors
Dinesh I. MODY
James E. Rasmussen
Mikhail Y. Ryaboy
Assignee (at issue)
Fisher Scientific Company, L.L.C.
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.