Granted Patent
Utility
US 5,267,640 · App. 08/002,232
Transfer station assembly for scraper-chain conveyors
Inventors:
Bodo Kerklies, Wilfried Mertens, Bernd Steinkuhl, Bernhard Wleklinski
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Jan 8, 1993
Inventors
Bodo Kerklies
Wilfried Mertens
Bernd Steinkuhl
Bernhard Wleklinski
Assignee (at issue)
Westfalia Becorit Industrietechnik 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.