Solicitação de exame técnico
#4.1
08/11/1987
RPI 877
Application data
Number
PI8504924Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 08/11/1987. We update with every new RPI gazette, published weekly.
Applicants
Alcan Alumínio do Brasil Ltda
SP, BR
Alcan Alumínio do Brasil S/A
BA, BR
Inventors
A. F. (pessoa física)
L. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
08/11/1987
RPI 877
#3.1
05/12/1987
RPI 864
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Patente extinta em 07/10/2000
07/15/2008
RPI 1958
#25.4
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02/02/1999
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#15.11
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