Granted Patent
Utility
US 4,448,534 · App. 06/082,228
Antibiotic susceptibility testing
Inventors:
Richard K. Wertz, Albert M. Cook, James C. Hathaway
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Oct 5, 1979
Inventors
Richard K. Wertz
Albert M. Cook
James C. Hathaway
Assignee (at issue)
American Hospital 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.