Publicação do pedido de patente
#3.1
12/29/1987
RPI 897
Application data
Number
PI8700952Type
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
E. D. (pessoa física)
NL
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
12/29/1987
RPI 897
#2.1
06/16/1987
RPI 869
#21.1
Patente extinta em 27/02/2002
07/29/2008
RPI 1960
#16.1
05/31/1994
RPI 1226
#9.1
10/19/1993
RPI 1194
#6.1
05/11/1993
RPI 1171
#4.1
05/22/1990
RPI 1019
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