Granted Patent
Utility
US 5,810,826 · App. 08/388,491
Puncture instrument
Inventors:
Dan Akerfeldt, Gunnar Strom, Håkan Ahlström
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Feb 14, 1995
Inventors
Dan Akerfeldt
Gunnar Strom
Håkan Ahlström
Assignee (at issue)
Radi Medical Systems 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.