Granted Patent
Utility
US 6,007,140 · App. 08/796,907
Sealing arrangements
Inventors:
Carsten Heitmann, Gunther Wilmes, Norbert Heller
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Feb 6, 1997
Inventors
Carsten Heitmann
Gunther Wilmes
Norbert Heller
Assignee (at issue)
Draftex Industries Limited
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.