Concessão da patente
#16.1
01/25/1983
RPI 640
The letters patent expired on 07/27/1993: 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: 01/25/1983. We update with every new RPI gazette, published weekly.
Applicants
Y. N. (pessoa física)
Inventors
Y. N. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
01/25/1983
RPI 640
#13.1
09/21/1982
RPI 622
#9.1
06/01/1982
RPI 606
#6.1
10/27/1981
RPI 575
#21.1
07/27/1993
RPI 1182
Same category
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