Carta-patente expirada
#21.1
07/15/1986
RPI 821
The letters patent expired on 07/15/1986: 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: 07/15/1986. 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).
#21.1
07/15/1986
RPI 821
04/26/1983
RPI 653
#16.1
02/22/1983
RPI 644
#13.1
12/07/1982
RPI 633
#9.1
07/20/1982
RPI 613
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