Pedido de licença compulsória
#20.1
10/10/1989
RPI 990
The letters patent expired on 05/24/1994: 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: 10/10/1989. We update with every new RPI gazette, published weekly.
Applicants
CARBOINDUSTRIAL SA
O. D. (pessoa física)
S. G. (pessoa física)
Inventors
O. D. (pessoa física)
S. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
10/10/1989
RPI 990
10/03/1989
RPI 989
#20.1
09/26/1989
RPI 988
05/26/1987
RPI 866
#20.1
05/12/1987
RPI 864
#16.1
09/06/1983
RPI 672
#13.1
05/24/1983
RPI 657
#6.1
07/20/1982
RPI 613
#6.1
02/09/1982
RPI 590
#21.1
05/24/1994
RPI 1225
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