Pedido de patente depositado
#2.1
04/11/1989
RPI 964
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Official data from INPI
LIGA DE FE-NI-CR REFORÇADA COM NITROGÊNIO
Prazo de SigiloInvention Patent
Application data
Number
PI8806368Type
Invention Patent
Filing
12/02/1988
Publication
07/24/1990
Progress at the INPI
- Filing12/02/88
- Publication07/24/90
- Examination08/13/91
- Allowance07/30/96
- Grant10/28/97
- Expired12/18/12
The letters patent expired on 12/18/2012: 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: 04/11/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Haynes International, Inc
US
Inventors
D. K. (pessoa física)
US
G. L. (pessoa física)
US
M. R. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Carta-patente expirada
#21.1
Patente extinta em 02/12/2008
12/18/2012
RPI 2189
Concessão da patente
#16.1
10/28/1997
RPI 1404
Notificação para pagamento de retribuição
#13.1
03/25/1997
RPI 1373
Deferimento
#9.1
07/30/1996
RPI 1339
Exigência - art. 36 da LPI
#6.1
11/21/1995
RPI 1303
Solicitação de exame técnico
#4.1
08/13/1991
RPI 1080
Publicação do pedido de patente
#3.1
07/24/1990
RPI 1025
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