Concessão da patente
#16.1
02/22/1983
RPI 644
The letters patent expired on 07/06/1993: 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: 02/22/1983. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
M. C. (pessoa física)
GB
P. H. (pessoa física)
GB
IPC Classification
Priority claims
GB
41300/76 · 10/05/1976
Publications in the Brazilian Industrial Property Gazette (RPI).
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RPI 644
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