Pedido de licença compulsória
#20.1
09/01/1987
RPI 880
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: 09/01/1987. We update with every new RPI gazette, published weekly.
Applicants
D. L. (pessoa física)
Inventors
D. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
09/01/1987
RPI 880
12/30/1986
RPI 845
05/13/1986
RPI 812
11/05/1985
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RPI 785
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RPI 734
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RPI 688
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RPI 660
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04/06/1982
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12/01/1981
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#21.1
12/07/1993
RPI 1201
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