Pedido de patente depositado
#2.1
07/18/1989
RPI 978
Application data
Number
PI8902616Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 07/18/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
E. D. (pessoa física)
NL
J. D. (pessoa física)
NL
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
07/18/1989
RPI 978
#21.1
Patente extinta em 06/06/2004
12/22/2009
RPI 2033
#16.1
12/31/1996
RPI 1361
#9.1
03/19/1996
RPI 1320
#6.1
08/30/1994
RPI 1239
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04/07/1992
RPI 1114
#3.1
01/23/1990
RPI 1003
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