Publicação do pedido de patente
#3.1
11/21/1989
RPI 996
Application data
Number
PI8900729Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 11/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
L. S. (pessoa física)
NL
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
11/21/1989
RPI 996
#2.1
04/04/1989
RPI 963
#21.1
Patente extinta em 20/02/2004
12/15/2009
RPI 2032
#16.1
06/27/1995
RPI 1282
#9.1
01/03/1995
RPI 1257
#6.1
08/30/1994
RPI 1239
#4.1
11/12/1991
RPI 1093
From the same holder
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