Granted Patent
Utility
US 6,456,039 · App. 09/997,367
Interchangeable battery with additional communications capabilities for mobile telephones
Inventors:
Eric Lauper, Rudolph Ritter
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Nov 30, 2001
Inventors
Eric Lauper
Rudolph Ritter
Assignee (at issue)
Swisscom Mobile AG
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.