Granted Patent
Utility
US 5,339,488 · App. 07/792,019
Sealing and wiping arrangement including inflatable chamber
Inventor:
Klaus-Peter Maass
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Nov 13, 1991
Inventor
Klaus-Peter Maass
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.