20.11
06/17/1986
RPI 817
The letters patent expired on 09/21/1993: 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: 06/17/1986. We update with every new RPI gazette, published weekly.
Applicants
B. D. (pessoa física)
Inventors
B. D. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
06/17/1986
RPI 817
#20.1
02/18/1986
RPI 800
02/14/1984
RPI 695
#16.1
11/29/1983
RPI 684
#13.1
09/27/1983
RPI 675
#9.1
05/10/1983
RPI 655
#6.1
10/19/1982
RPI 626
#21.1
09/21/1993
RPI 1190
Same category
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