Pedido de patente depositado
#2.1
05/23/1989
RPI 970
The letters patent expired on 09/25/2001: 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: 05/23/1989. We update with every new RPI gazette, published weekly.
Applicants
Alcoa Alumínio S/A
MG, BR
Inventors
A. Z. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
05/23/1989
RPI 970
#21.1
Patente extinta em 16/12/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
04/25/1995
RPI 1273
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12/20/1994
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08/23/1994
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04/13/1993
RPI 1167
#4.1
11/24/1992
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05/07/1991
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08/07/1990
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