Granted Patent
Utility
US 6,371,815 · App. 09/052,242
Adapter plug for rechargeable electric appliances
Inventors:
Matthias Wetzel, Jochen Cimbal
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Mar 31, 1998
Inventors
Matthias Wetzel
Jochen Cimbal
Assignee (at issue)
The Braun Corporation
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.