Granted Patent
Utility
US 6,589,028 · App. 09/890,582
Diaphragm pump
Inventors:
Anders Eckerbom, Christian Stahnke
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Oct 30, 2001
Inventors
Anders Eckerbom
Christian Stahnke
Assignee (at issue)
Artema Medical AB
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.