Solicitação de exame técnico
#4.1
06/30/1987
RPI 871
Application data
Number
PI8506050Type
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: 06/30/1987. We update with every new RPI gazette, published weekly.
Applicants
Prayon Developpement S.A.
BE
Inventors
A. D. (pessoa física)
BE
G. M. (pessoa física)
BE
IPC Classification
Priority claims
LU
85251 · 03/14/1984
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
06/30/1987
RPI 871
#1.3
03/25/1986
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Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 33/24; B01D 35/08; B01D 33/40.
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RPI 2464
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Patente extinta em 28/02/2000
07/15/2008
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