Concessão da patente
#16.1
09/29/1987
RPI 884
The letters patent expired on 11/22/1994: 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: 09/29/1987. We update with every new RPI gazette, published weekly.
Applicants
Eletrofrio S/A
PR, BR
Inventors
W. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/29/1987
RPI 884
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06/09/1987
RPI 868
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01/13/1987
RPI 847
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02/21/1984
RPI 696
#3.2
12/13/1983
RPI 686
#2.1
10/11/1983
RPI 677
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11/22/1994
RPI 1251
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