Publicação do pedido de patente
#3.1
05/30/1989
RPI 971
The letters patent expired on 09/18/2001: 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
Instituto Paranaense de Cegos
PR, BR
Inventors
M. R. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
05/30/1989
RPI 971
#2.1
12/29/1987
RPI 897
#21.1
Patente extinta em 05/10/97 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
09/18/2001
RPI 1602
#16.1
11/24/1992
RPI 1147
#13.1
07/28/1992
RPI 1130
#9.1
12/24/1991
RPI 1099
#6.1
08/06/1991
RPI 1079
#4.1
03/01/1990
RPI 1007
Same category
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