102
10/31/1989
RPI 993
The letters patent expired on 12/26/1995: 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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V., companhia holandesa
NL
Inventors
B. G. (pessoa física)
GB
M. B. (pessoa física)
IPC Classification
Priority claims
GB
7940856 · 11/27/1979
GB
7940857 · 11/27/1979
Publications in the Brazilian Industrial Property Gazette (RPI).
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08/16/1983
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12/26/1995
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08/28/1990
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06/26/1990
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