6.2
05/30/1989
RPI 971
Application data
Number
PI8504477Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
W. S. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
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Procedimento automático de reclassificação. As classificações IPC anteriores eram: C01B 33/28; C10G 73/02.
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