Solicitação de exame técnico
#4.1
09/20/1988
RPI 935
Application data
Number
PI8600337Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 09/20/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
R. W. (pessoa física)
IPC Classification
Priority claims
GB
8502398 · 01/31/1985
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