Pedido de licença compulsória
#20.1
02/02/1988
RPI 902
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: 02/02/1988. We update with every new RPI gazette, published weekly.
Applicants
Union Carbide do Brasil Ltda.
SP, BR
Inventors
B. F. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
02/02/1988
RPI 902
12/30/1986
RPI 845
#16.1
12/31/1985
RPI 793
#13.1
11/12/1985
RPI 786
#9.1
07/09/1985
RPI 768
#15.11
04/16/1985
RPI 756
#6.1
11/20/1984
RPI 735
#4.1
04/17/1984
RPI 704
#3.1
04/20/1982
RPI 600
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: F21L 7/00; F21L 9/00; H01F 7/02.
03/27/2018
RPI 2464
#21.1
12/07/1993
RPI 1201
From the same holder
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