16.4
08/21/1984
RPI 722
The letters patent expired on 06/21/1994: 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: 08/21/1984. We update with every new RPI gazette, published weekly.
Applicants
D. B. (pessoa física)
Inventors
F. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/21/1984
RPI 722
#16.1
05/29/1984
RPI 710
#13.1
03/27/1984
RPI 701
#9.1
12/06/1983
RPI 685
#6.1
06/07/1983
RPI 659
#4.1
08/03/1982
RPI 615
#21.1
06/21/1994
RPI 1229
Same category
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