Granted Patent
Utility
US 5,572,997 · App. 08/259,517
Coagulation timer
Inventors:
Rowland W. Kanner, Fred E. Williams, Jr.
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Jun 14, 1994
Inventors
Rowland W. Kanner
Fred E. Williams, Jr.
Assignee (at issue)
RYDER INTERNATIONAL CO., LTD.
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.