Concessão da patente
#16.1
04/29/1986
RPI 810
The letters patent expired on 04/18/1995: 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: 04/29/1986. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
E. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/29/1986
RPI 810
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12/03/1985
RPI 789
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RPI 695
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10/25/1983
RPI 679
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04/19/1983
RPI 652
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RPI 611
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10/20/1981
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04/18/1995
RPI 1272
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Same category
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