Concessão da patente
#16.1
10/25/1988
RPI 940
Application data
Number
PI8303604Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants
Magnesita S/A
MG, BR
Inventors
D. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/25/1988
RPI 940
#13.1
09/06/1988
RPI 933
#9.1
05/10/1988
RPI 916
#6.1
12/29/1987
RPI 897
#7.1
06/10/1986
RPI 816
#6.1
07/02/1985
RPI 767
#4.1
01/31/1984
RPI 693
#3.2
11/29/1983
RPI 684
#2.1
08/16/1983
RPI 669
#21.1
Patente extinta em 05/07/98
07/01/2008
RPI 1956
#18.2
05/02/1995
RPI 1274
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