Concessão da patente
#16.1
02/23/1988
RPI 905
The letters patent expired on 04/04/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 02/23/1988. We update with every new RPI gazette, published weekly.
Applicants
RUHRKOHLE AG
Inventors
S. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/23/1988
RPI 905
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