Concessão da patente
#16.1
02/25/1986
RPI 801
The letters patent expired on 11/15/1994: 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: 02/25/1986. We update with every new RPI gazette, published weekly.
Applicants
JOSE ROBERTO QUEIROZ FERREIRA [BR]
Inventors
F. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/25/1986
RPI 801
#13.1
11/12/1985
RPI 786
#9.1
07/09/1985
RPI 768
#4.1
07/24/1984
RPI 718
#3.1
05/02/1984
RPI 706
#2.1
11/23/1982
RPI 631
#21.1
11/15/1994
RPI 1250
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Same category
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