Pedido de patente depositado
#2.1
08/22/1989
RPI 983
Application data
Number
PI8903121Type
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: 08/22/1989. 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).
#2.1
08/22/1989
RPI 983
#21.1
Patente extinta em 26/06/2004
12/22/2009
RPI 2033
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06/27/1995
RPI 1282
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01/03/1995
RPI 1257
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