Granted Patent
Utility
US 4,305,925 · App. 06/146,348
Latex reagent
Inventors:
Wolfgang Kapmeyer, Axel Sieber
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: May 5, 1980
Inventors
Wolfgang Kapmeyer
Axel Sieber
Assignee (at issue)
Behringwerke Aktiengesellschaft
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.