Granted Patent
Utility
US 4,976,067 · App. 07/386,288
Sealing strips
Inventor:
Klaus-Peter Maass
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Jul 27, 1989
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.