Granted Patent
Utility
US 6,380,509 · App. 09/433,575
Method and device for the manufacture of connection ends on metal hoses
Inventor:
Alfred Gerhard Arlt
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Nov 4, 1999
Inventor
Alfred Gerhard Arlt
Assignee (at issue)
IWKA Balg- u. Kompensatoren-Technologie GmbH
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.