Solicitação de exame técnico
#4.1
09/13/1988
RPI 934
The letters patent expired on 01/28/1997: 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: 09/13/1988. We update with every new RPI gazette, published weekly.
Applicants
E. B. (pessoa física)
SP, BR
Inventors
E. B. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/13/1988
RPI 934
#3.1
06/14/1988
RPI 921
#2.1
04/28/1987
RPI 862
#21.1
01/28/1997
RPI 1365
#16.1
06/25/1991
RPI 1073
#13.1
03/12/1991
RPI 1058
#9.1
11/27/1990
RPI 1043
#6.1
08/14/1990
RPI 1028
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Same category
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