Publicação do pedido de patente
#3.1
08/01/1989
RPI 980
Application data
Number
PI8805888Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 08/01/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
H. F. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
08/01/1989
RPI 980
#2.1
03/28/1989
RPI 962
#21.1
Patente extinta em 10/11/2003
09/02/2008
RPI 1965
#16.1
12/31/1996
RPI 1361
#9.1
03/19/1996
RPI 1320
#6.1
08/02/1994
RPI 1235
#4.1
08/27/1991
RPI 1082
From the same holder
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