Granted Patent
Utility
US 4,544,370 · App. 06/381,161
Air leak detection system for chest fluid collection bottles and blow-out prevention baffle
Inventors:
Donald P. Elliott, William L. Halseth
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: May 24, 1982
Inventors
Donald P. Elliott
William L. Halseth
Assignee (at issue)
C. R. Bard, Inc.
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.