Pedido de patente depositado
#2.1
11/07/1989
RPI 994
Application data
Number
PI8903537Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 11/07/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
J. S. (pessoa física)
NL
R. G. (pessoa física)
NL
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
11/07/1989
RPI 994
#21.1
Patente extinta em 19/10/2009
12/26/2012
RPI 2190
#16.1
10/19/1999
RPI 1502
#9.1
11/03/1998
RPI 1452
#6.1
05/12/1998
RPI 1429
#4.1
03/31/1992
RPI 1113
#3.1
03/13/1990
RPI 1009
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