Granted Patent
Utility
US 5,084,051 · App. 07/215,010
Layered surgical biocomposite material
Inventors:
Pertti Tormala, Seppo Vainionpaa, Pentti Rokkanen, Pertti Helevirta, Marja Pellinen
Patented Case
View Patent ↗
Granted: Jan 28, 1992
Filed: Aug 24, 1988
Inventors
Pertti Tormala
Seppo Vainionpaa
Pentti Rokkanen
Pertti Helevirta
Marja Pellinen
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.