Concessão da patente
#16.1
03/17/1987
RPI 856
The letters patent expired on 12/07/1993: 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: 03/17/1987. We update with every new RPI gazette, published weekly.
Applicants
REFINARIA NACIONAL DE SAL S A [BR]
Inventors
P. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/17/1987
RPI 856
11/11/1986
RPI 838
11/04/1986
RPI 837
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06/24/1986
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#9.1
02/12/1986
RPI 799
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05/21/1985
RPI 761
#3.1
11/13/1984
RPI 734
#2.1
05/31/1983
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#21.1
12/07/1993
RPI 1201
Same category
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