Granted Patent
Utility
US 6,011,234 · App. 08/793,086
Device for welding together at least two parts and method of using the device
Inventors:
Eduard Kirchner, Carsten Claussen, Hartmut Ilch
Patented Case
View Patent ↗
Granted: Jan 4, 2000
Filed: Feb 14, 1997
Inventors
Eduard Kirchner
Carsten Claussen
Hartmut Ilch
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.