Concessão da patente
#16.1
06/30/1987
RPI 871
Application data
Number
PI8201575Type
Filing
Publication
The patent was granted on 06/30/1987 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: 06/30/1987. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
D. E. (pessoa física)
IPC Classification
Priority claims
GB
8109119 · 03/24/1981
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