Granted Patent
Utility
US 6,693,408 · App. 10/255,369
Electric accumulator batteries
Inventors:
Rafael Rodriguez, Antonio Ripoll Anton, Ernesto Collado Parra
Patented Case
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Granted: Feb 17, 2004
Filed: Sep 26, 2002
Inventors
Rafael Rodriguez
Antonio Ripoll Anton
Ernesto Collado Parra
Assignee (at issue)
S.E. Acumulador Yudor, S.A.
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.