Concessão da patente
#16.1
09/26/1989
RPI 988
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Official data from INPI
DISPOSITIVO PARA RESFRIAMENTO DE UM GÁS DE PRODUTO QUENTE
ConcedidaInvention Patent
Application data
Number
PI8503406Type
Invention Patent
Filing
07/17/1985
Publication
04/08/1986
Progress at the INPI
- Filing07/17/85
- Publication04/08/86
- Examination08/19/86
- Allowance12/06/88
- Grant09/26/89
- Expired07/15/08
The letters patent expired on 07/15/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Deutsche Voest Alpine Industrieanlagenbau Gmbh
AT
Korf Engineering Gmbh.
DE
Inventors
D. P. (pessoa física)
DE
M. N. (pessoa física)
AT
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
04/25/1989
RPI 966
Deferimento
#9.1
12/06/1988
RPI 946
Republicação - classificação IPC
#15.11
11/22/1988
RPI 944
Solicitação de exame técnico
#4.1
08/19/1986
RPI 826
Publicação do pedido de patente
#3.1
04/08/1986
RPI 807
Pedido de patente depositado
#2.1
09/24/1985
RPI 779
Carta-patente expirada
#21.1
Patente extinta em 17/07/2000
07/15/2008
RPI 1958
20.4
11/10/1992
RPI 1145
Pedido de licença compulsória
#20.1
05/07/1991
RPI 1066
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