Solicitação de exame técnico
#4.1
02/21/1989
RPI 957
The letters patent expired on 07/01/2008: 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: 02/21/1989. We update with every new RPI gazette, published weekly.
Applicants
I. L. (pessoa física)
RJ, BR
Inventors
I. L. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
02/21/1989
RPI 957
#3.1
05/31/1988
RPI 919
#2.1
04/28/1987
RPI 862
#21.1
Patente extinta em 21/10/1996
07/01/2008
RPI 1956
#16.1
10/30/1990
RPI 1039
#13.1
08/14/1990
RPI 1028
#9.1
04/10/1990
RPI 1013
Same category
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