Concessão da patente
#16.1
12/30/1986
RPI 845
Back to search
Official data from INPI
Processo de preparação de catalisador.
ConcedidaInvention Patent
Application data
Number
PI8104564Type
Invention Patent
Filing
07/16/1981
Publication
04/06/1982
Progress at the INPI
- Filing07/16/81
- Publication04/06/82
- Examination08/03/82
- Allowance02/12/86
- Grant12/30/86
- Terminated09/13/94
The patent was granted on 12/30/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 12/30/1986. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Dyson Refractories Limited
GB
Inventors
J. R. (pessoa física)
S. M. (pessoa física)
Technical data
IPC Classification
Priority claims
GB
8023224 · 07/16/1980
GB
8023226 · 07/16/1980
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
06/24/1986
RPI 818
Deferimento
#9.1
02/12/1986
RPI 799
Exigência - art. 36 da LPI
#6.1
04/16/1985
RPI 756
Pedido de certificado de adição de invenção
#5.1
01/25/1983
RPI 640
Solicitação de exame técnico
#4.1
08/03/1982
RPI 615
Publicação do pedido de patente
#3.1
04/06/1982
RPI 598
Anuidade - prazo legal encerrado
#18.2
09/13/1994
RPI 1241
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.