Pedido de certificado de adição de invenção
#5.1
11/14/1989
RPI 995
Application data
Number
PI8506158Type
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: 11/14/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
P. E. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#5.1
11/14/1989
RPI 995
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07/18/1989
RPI 978
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RPI 801
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Patente extinta em 09/12/2000
07/15/2008
RPI 1958
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04/30/1991
RPI 1065
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01/15/1991
RPI 1050
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Same category
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