14.4
12/05/1989
RPI 998
Application data
Number
PI8502573Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 12/05/1989. We update with every new RPI gazette, published weekly.
Applicants
De Nora Permelec S.p.A
IT
Inventors
O. N. (pessoa física)
IT
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
12/05/1989
RPI 998
#4.1
02/21/1989
RPI 957
#3.1
01/06/1987
RPI 846
#2.1
08/06/1985
RPI 772
#21.1
Patente extinta em 30/05/2000
07/15/2008
RPI 1958
#16.1
03/29/1994
RPI 1217
#9.1
09/21/1993
RPI 1190
#6.1
01/19/1993
RPI 1155
From the same holder
Same category
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