Solicitação de exame técnico
#4.1
11/22/1988
RPI 944
Application data
Number
PI8503877Type
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: 11/22/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
M. A. (pessoa física)
GB
IPC Classification
Priority claims
GB
8420930 · 08/17/1984
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