Solicitação de exame técnico
#4.1
03/31/1987
RPI 858
Application data
Number
PI8502133Type
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: 03/31/1987. We update with every new RPI gazette, published weekly.
Applicants
CETESB -Companhia de Tecnologia de Saneamento Ambiental
SP, BR
Inventors
M. S. (pessoa física)
BR
S. V. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
03/31/1987
RPI 858
#3.1
12/09/1986
RPI 842
#2.1
07/09/1985
RPI 768
#21.1
Patente extinta em 06/05/2000
07/15/2008
RPI 1958
#16.1
09/25/1990
RPI 1034
#13.1
05/22/1990
RPI 1019
#9.1
01/23/1990
RPI 1003
From the same holder
Same category
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