Granted Patent
Utility
US 6,382,539 · App. 09/666,031
Blade
Inventor:
Norbert Gülke
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Sep 21, 2000
Inventor
Norbert Gülke
Assignee (at issue)
Tiromat Kramer & Grebe GmbH & Co. KG
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.