Solicitação de exame técnico
#4.1
06/09/1987
RPI 868
Application data
Number
PI8603446Type
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: 06/09/1987. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
H. A. (pessoa física)
US
J. R. (pessoa física)
US
M. T. (pessoa física)
US
R. J. (pessoa física)
US
IPC Classification
Priority claims
US
759.016 · 07/25/1985
US
878.759 · 07/02/1986
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