Concessão da patente
#16.1
02/04/1986
RPI 798
Application data
Number
PI8304761Type
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: 02/04/1986. We update with every new RPI gazette, published weekly.
Applicants
Elkem, A/S
Inventors
E. B. (pessoa física)
IPC Classification
No IPC classification.
Priority claims
NO
822966 · 09/02/1982
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/04/1986
RPI 798
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11/26/1985
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RPI 727
#4.1
06/26/1984
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#3.1
04/10/1984
RPI 703
#2.1
11/01/1983
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#21.1
Patente extinta em 31/08/98
07/01/2008
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