20.7
10/06/1987
RPI 885
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: 10/06/1987. We update with every new RPI gazette, published weekly.
Applicants
A. L. (pessoa física)
SP, BR
Inventors
L. A. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
10/06/1987
RPI 885
#20.1
09/04/1984
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06/19/1984
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12/27/1983
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09/27/1983
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06/28/1983
RPI 662
#9.1
03/08/1983
RPI 646
#6.1
11/09/1982
RPI 629
#21.1
12/07/1993
RPI 1201
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