Publicação do pedido de patente
#3.1
12/29/1987
RPI 897
Application data
Number
PI8701247Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 12/29/1987. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
A. S. (pessoa física)
US
S. C. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
12/29/1987
RPI 897
#2.1
06/30/1987
RPI 871
#21.1
Patente extinta em 19/03/2002
07/29/2008
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11/28/1995
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06/06/1995
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09/20/1994
RPI 1242
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04/28/1992
RPI 1117
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06/12/1990
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