Publicação do pedido de patente
#3.1
12/22/1987
RPI 896
Application data
Number
PI8700978Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 12/22/1987. We update with every new RPI gazette, published weekly.
Applicants
Alcan International Limited
CA
Inventors
D. P. (pessoa física)
CA
P. B. (pessoa física)
CA
IPC Classification
Priority claims
CA
502.948 · 02/28/1986
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
12/22/1987
RPI 896
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Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 21/14; C22B 21/00.
03/27/2018
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07/29/2008
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