Concessão da patente
#16.1
10/27/1987
RPI 888
The letters patent expired on 11/22/1994: 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: 10/27/1987. We update with every new RPI gazette, published weekly.
Applicants
IND DE MATRIZES RIO BRANCO LTD [BR]
Inventors
P. S. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/27/1987
RPI 888
#13.1
06/09/1987
RPI 868
#15.11
04/22/1987
RPI 861
#9.1
01/06/1987
RPI 846
#4.1
11/19/1985
RPI 787
#3.2
08/20/1985
RPI 774
#2.1
01/22/1985
RPI 744
#21.1
11/22/1994
RPI 1251
Same category
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