22.6
07/08/1986
RPI 820
The letters patent expired on 08/19/2008: 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: 07/08/1986. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/08/1986
RPI 820
11/12/1985
RPI 786
#18.2
07/30/1985
RPI 771
#16.1
06/29/1982
RPI 610
#13.1
01/26/1982
RPI 588
#21.1
Patente extinta em 02/04/86
08/19/2008
RPI 1963
From the same holder
Same category
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