Carta-patente expirada
#21.1
Patente extinta em 28/12/1999 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
11/20/2001
RPI 1611
The letters patent expired on 11/20/2001: 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: 11/20/2001. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Usinas Siderúrgicas de Minas Gerais S/A-Usiminas (Grupo Siderbrás)
MG, BR
Inventors
J. F. (pessoa física)
BR
U. M. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 28/12/1999 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
11/20/2001
RPI 1611
#16.1
06/28/1994
RPI 1230
#13.1
02/22/1994
RPI 1212
#9.1
09/21/1993
RPI 1190
#4.1
02/18/1992
RPI 1107
#3.1
07/23/1991
RPI 1077
#2.1
04/24/1990
RPI 1015
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