Granted Patent
Utility
US 5,643,316 · App. 08/424,124
Method of thoracoscopic surgery using hinged tissue grasping forceps
Inventors:
Larry Kaiser, William H. Pilling
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Apr 19, 1995
Inventors
Larry Kaiser
William H. Pilling
Assignees (at issue)
The Trustees of the University of Pennsylvania
Pilling Co.
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.