Pedido de licença compulsória
#20.1
10/17/1989
RPI 991
The letters patent expired on 10/04/1994: 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: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
TOLU YAMAMOTO [BR]
Inventors
Y. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
10/17/1989
RPI 991
#16.1
12/27/1988
RPI 949
#13.1
08/09/1988
RPI 929
#9.1
04/26/1988
RPI 914
#6.1
12/08/1987
RPI 894
#4.1
08/05/1986
RPI 824
#3.1
09/24/1985
RPI 779
#2.1
05/08/1984
RPI 707
#21.1
10/04/1994
RPI 1244
Same category
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