Concessão da patente
#16.1
06/28/1983
RPI 662
The letters patent expired on 12/31/2024: 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: 06/28/1983. We update with every new RPI gazette, published weekly.
Applicants
R. E. (pessoa física)
Inventors
R. S. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/28/1983
RPI 662
#11.2
10/26/1982
RPI 627
#6.1
02/24/1982
RPI 592
#21.1
PATENTE EXTINTA EM 19/12/1987
12/31/2024
RPI 2817
Same category
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