Publicação do pedido de patente
#3.1
01/24/1989
RPI 953
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Official data from INPI
LIGA DE COBRE E PROCESSO PARA SUA PREPARAÇÃO
PublicadaInvention Patent
Application data
Number
PI8703550Type
Invention Patent
Filing
07/10/1987
Publication
01/24/1989
Progress at the INPI
- Filing07/10/87
- Publication01/24/89
- Examination04/10/90
- Allowance06/14/94
- Grant01/31/95
- Expired07/29/08
The letters patent expired on 07/29/2008: 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: 01/24/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Kabel - Und Metallwerke Gutehoffnungshuette Ag.
DE
Inventors
H. G. (pessoa física)
DE
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de patente depositado
#2.1
10/06/1987
RPI 885
Carta-patente expirada
#21.1
Patente extinta em 10/07/2002
07/29/2008
RPI 1960
Concessão da patente
#16.1
01/31/1995
RPI 1261
Notificação para pagamento de retribuição
#13.1
10/18/1994
RPI 1246
Deferimento
#9.1
06/14/1994
RPI 1228
Solicitação de exame técnico
#4.1
04/10/1990
RPI 1013
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