Pedido de certificado de adição de invenção
#5.1
05/31/1988
RPI 919
Application data
Number
PI8503204Type
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: 05/31/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V., companhia holandesa.
NL
Inventors
M. P. (pessoa física)
NL
S. S. (pessoa física)
NL
Publications in the Brazilian Industrial Property Gazette (RPI).
#5.1
05/31/1988
RPI 919
#4.1
03/01/1988
RPI 906
#3.1
03/25/1986
RPI 805
#2.1
09/17/1985
RPI 778
#21.1
Patente extinta em 04/07/2000
07/15/2008
RPI 1958
#16.1
04/25/1995
RPI 1273
#13.1
01/17/1995
RPI 1259
#9.1
09/13/1994
RPI 1241
#6.1
09/29/1992
RPI 1139
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