20.4
01/12/1988
RPI 899
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: 01/12/1988. We update with every new RPI gazette, published weekly.
Applicants
Fundição Tupy S/A
Inventors
M. G. (pessoa física)
S. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
01/12/1988
RPI 899
#20.1
01/05/1988
RPI 898
12/01/1987
RPI 893
11/10/1987
RPI 890
#16.1
08/28/1984
RPI 723
#13.1
06/05/1984
RPI 711
#9.1
02/14/1984
RPI 695
#15.11
09/13/1983
RPI 673
#6.1
08/16/1983
RPI 669
#4.1
06/22/1982
RPI 609
#3.1
03/16/1982
RPI 595
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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