Solicitação de exame técnico
#4.1
08/30/1988
RPI 932
Application data
Number
PI8506412Type
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: 08/30/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
J. (. (pessoa física)
US
IPC Classification
Priority claims
US
685946 · 12/24/1984
US
685947 · 12/24/1984
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