20.7
11/11/1986
RPI 838
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: 11/11/1986. We update with every new RPI gazette, published weekly.
Applicants
S. G. (pessoa física)
Inventors
H. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/11/1986
RPI 838
11/04/1986
RPI 837
11/19/1985
RPI 787
#17.1
06/11/1985
RPI 764
#16.1
04/24/1984
RPI 705
#13.1
01/31/1984
RPI 693
12/06/1983
RPI 685
#12.1
06/21/1983
RPI 661
#9.1
03/01/1983
RPI 645
#6.1
08/31/1982
RPI 619
#21.1
12/07/1993
RPI 1201
Same category
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