Concessão da patente
#16.1
07/29/1986
RPI 823
The letters patent expired on 12/07/1993: 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: 07/29/1986. We update with every new RPI gazette, published weekly.
Applicants
JOAO G SIQUEIRA [BR]
Inventors
S. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/29/1986
RPI 823
04/01/1986
RPI 806
#12.2
10/08/1985
RPI 781
#9.2
06/25/1985
RPI 766
#4.1
08/07/1984
RPI 720
#3.1
03/07/1984
RPI 698
#2.1
09/14/1982
RPI 621
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: E04C 1/04; E04F 13/00.
03/27/2018
RPI 2464
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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