Concessão da patente
#16.1
05/30/1989
RPI 971
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Official data from INPI
Processo de recobrimento de eletrodos.
ConcedidaInvention Patent
Application data
Number
PI8201755Type
Invention Patent
Filing
03/29/1982
Publication
03/01/1983
Progress at the INPI
- Filing03/29/82
- Publication03/01/83
- Examination04/30/85
- Allowance09/06/88
- Grant05/30/89
- Expired07/01/08
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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
De Nora Ermelec S.p.A.
IT
D. C. (pessoa física)
US
Inventors
H. M. (pessoa física)
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
12/27/1988
RPI 949
Deferimento
#9.1
09/06/1988
RPI 933
14.1
09/02/1986
RPI 828
Conhecimento de parecer técnico
#7.1
12/17/1985
RPI 791
Solicitação de exame técnico
#4.1
04/30/1985
RPI 758
14.4
07/10/1984
RPI 716
Publicação do pedido de patente
#3.1
03/01/1983
RPI 645
Pedido de patente depositado
#2.1
05/18/1982
RPI 604
Carta-patente expirada
#21.1
Patente extinta em 29/03/97
07/01/2008
RPI 1956
Pedido de licença compulsória
#20.1
08/28/1990
RPI 1030
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