20.7
09/30/1986
RPI 832
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: 09/30/1986. We update with every new RPI gazette, published weekly.
Applicants
G. T. (pessoa física)
SP, BR
Inventors
T. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/30/1986
RPI 832
09/23/1986
RPI 831
#20.1
08/27/1985
RPI 775
#16.1
12/26/1984
RPI 740
#13.1
10/23/1984
RPI 731
#15.11
09/04/1984
RPI 724
#9.1
06/26/1984
RPI 714
05/15/1984
RPI 708
#6.1
01/10/1984
RPI 690
#4.1
02/16/1982
RPI 591
#3.2
12/15/1981
RPI 582
#2.1
10/20/1981
RPI 574
#21.1
12/07/1993
RPI 1201
06/26/1990
RPI 1024
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Same category
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