Granted Patent
Utility
US 6,835,271 · App. 10/048,848
Adhesive systems
Inventors:
Thomas Luchterhandt, Hendrik Grupp, Rainer Guggenberger
Patented Case
View Patent ↗
Granted: Dec 28, 2004
Filed: Apr 5, 2002
Inventors
Thomas Luchterhandt
Hendrik Grupp
Rainer Guggenberger
Assignee (at issue)
3M ESPE AG
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.