Solicitação de exame técnico
#4.1
12/08/1987
RPI 894
Application data
Number
PI8502062Type
Filing
Publication
The patent was granted on 12/31/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 12/08/1987. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
P. C. (pessoa física)
IPC Classification
Priority claims
US
505050 · 05/02/1984
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