Granted Patent
Utility
US 4,430,998 · App. 06/383,759
Wound closing device
Inventors:
Robert Joseph Harvey, Philip Litwak, William A. Ribich, John M. Dubowik
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Jun 1, 1982
Inventors
Robert Joseph Harvey
Philip Litwak
William A. Ribich
John M. Dubowik
Assignee (at issue)
Thoratec Laboratories 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.