Solicitação de exame técnico
#4.1
09/01/1987
RPI 880
Application data
Number
PI8701533Type
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: 09/01/1987. We update with every new RPI gazette, published weekly.
Applicants
Química Nacional Quiminasa S/A
SP, BR
Inventors
A. A. (pessoa física)
BR
J. C. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/01/1987
RPI 880
#3.2
07/14/1987
RPI 873
#2.1
06/30/1987
RPI 871
#21.1
Patente extinta em 03/04/2002
07/29/2008
RPI 1960
#16.1
11/30/1993
RPI 1200
#13.1
08/17/1993
RPI 1185
#9.1
04/20/1993
RPI 1168
From the same holder
Same category
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