Pedido de certificado de adição de invenção
#5.1
01/12/1988
RPI 899
Application data
Number
PI8501321Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 01/12/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
R. K. (pessoa física)
IPC Classification
Priority claims
GB
8407747 · 03/26/1984
GB
8424319 · 09/26/1984
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