Pedido de licença compulsória
#20.1
06/07/1988
RPI 920
The letters patent expired on 06/21/1994: 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: 06/07/1988. We update with every new RPI gazette, published weekly.
Applicants
ERCO IND LTD
Inventors
R. W. (pessoa física)
R. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
06/07/1988
RPI 920
11/10/1987
RPI 890
#16.1
12/27/1983
RPI 688
#13.1
09/27/1983
RPI 675
#9.1
05/10/1983
RPI 655
#6.1
03/30/1982
RPI 597
#21.1
06/21/1994
RPI 1229
#20.1
05/04/1993
RPI 1170
From the same holder
Same category
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