Solicitação de exame técnico
#4.1
03/24/1987
RPI 857
Application data
Number
PI8501834Type
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: 03/24/1987. We update with every new RPI gazette, published weekly.
Applicants
C. C. (pessoa física)
SP, BR
W. R. (pessoa física)
SP, BR
Inventors
C. C. (pessoa física)
BR
W. R. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
03/24/1987
RPI 857
#3.1
11/25/1986
RPI 840
#2.1
07/02/1985
RPI 767
#21.1
Patente extinta em 17/04/2000
07/15/2008
RPI 1958
#16.1
06/29/1993
RPI 1178
#13.1
04/06/1993
RPI 1166
#13.1
03/16/1993
RPI 1163
01/12/1993
RPI 1154
#12.2
09/10/1991
RPI 1084
#9.2
05/28/1991
RPI 1069
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