Granted Patent
Utility
US 6,327,832 · App. 09/581,754
Shearing reinforcement for flat ceilings and dowel strip
Inventors:
Peter Ernst, Gerhard Schrader
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Aug 11, 2000
Inventors
Peter Ernst
Gerhard Schrader
Assignee (at issue)
DEHA Ankersysteme GmbH & Co. KG
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.