16.3
05/15/1984
RPI 708
The letters patent expired on 12/07/1993: 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: 05/15/1984. We update with every new RPI gazette, published weekly.
Applicants
W. A. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
05/15/1984
RPI 708
#16.1
02/28/1984
RPI 697
11/16/1983
RPI 682
06/21/1983
RPI 661
#12.2
02/16/1983
RPI 643
#9.2
09/21/1982
RPI 622
#21.1
12/07/1993
RPI 1201
Same category
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