Granted Patent
Utility
US 4,578,060 · App. 06/515,504
Wound drainage device
Inventors:
Charles M. Huck, Edward W. Larrabee
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Jul 20, 1983
Inventors
Charles M. Huck
Edward W. Larrabee
Assignee (at issue)
Howmedica 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.