Granted Patent
Utility
US 6,784,273 · App. 09/701,622
Biomedical polyurethane, its preparation and use
Inventors:
Coenraad Spaans, Jacqueline de Groot, Folkert Gerhardus Dekens, Albert Johan Pennings
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Jun 19, 2001
Inventors
Coenraad Spaans
Jacqueline de Groot
Folkert Gerhardus Dekens
Albert Johan Pennings
Assignee (at issue)
Polyganics BV
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.