Concessão da patente
#16.1
12/26/1984
RPI 740
The letters patent expired on 07/06/1993: 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: 12/26/1984. We update with every new RPI gazette, published weekly.
Applicants
FRENKEL AG C D
Inventors
M. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/26/1984
RPI 740
10/02/1984
RPI 728
#11.4
07/12/1983
RPI 664
#13.1
07/06/1982
RPI 611
#9.1
03/16/1982
RPI 595
#21.1
07/06/1993
RPI 1179
Same category
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