Granted Patent
Utility
US 6,712,581 · App. 10/219,323
Process for producing a groove-like recess, and a groove-like recess of this type
Inventors:
Stefan Florjancic, Ulrich Rathmann
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Aug 16, 2002
Inventors
Stefan Florjancic
Ulrich Rathmann
Assignee (at issue)
ALSTOM Technology Ltd
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.