Pedido de patente depositado
#2.1
07/25/1989
RPI 979
Application data
Number
PI8902859Type
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: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
I. M. (pessoa física)
NL
J. B. (pessoa física)
NL
J. E. (pessoa física)
NL
IPC Classification
Priority claims
GB
8814293.0 · 06/16/1988
GB
8904409.3 · 02/27/1989
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