Carta-patente expirada
#21.1
08/16/1988
RPI 930
The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.
Applicants
O. C. (pessoa física)
O. N. (pessoa física)
Inventors
O. C. (pessoa física)
O. N. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
08/16/1988
RPI 930
#20.1
09/23/1986
RPI 831
#16.1
09/25/1984
RPI 727
#13.1
05/02/1984
RPI 706
#9.1
01/10/1984
RPI 690
#6.1
05/10/1983
RPI 655
#7.1
06/08/1982
RPI 607
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era E06B 9/20.
03/27/2018
RPI 2464
From the same holder
Same category
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