Concessão da patente
#16.1
02/22/1983
RPI 644
The letters patent expired on 05/24/1994: 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: 02/22/1983. We update with every new RPI gazette, published weekly.
Applicants
P. B. (pessoa física)
Inventors
R. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/22/1983
RPI 644
#13.1
09/08/1982
RPI 620
#9.1
05/18/1982
RPI 604
#6.1
11/03/1981
RPI 576
#21.1
05/24/1994
RPI 1225
12/29/1992
RPI 1152
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