Concessão da patente
#16.1
09/26/1989
RPI 988
Back to search
Official data from INPI
PROCESSO PARA PREPARAR UMA COMPOSIÇÃO EM PARTÍCULAS
ConcedidaInvention Patent
Application data
Number
PI8406994Type
Invention Patent
Filing
07/27/1984
Publication
07/02/1985
Progress at the INPI
- Filing07/27/84
- Publication07/02/85
- Examination02/09/88
- Allowance12/06/88
- Grant09/26/89
- Expired07/08/08
The letters patent expired on 07/08/2008: 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
Silberline Limited
GB
Inventors
I. W. (pessoa física)
GB
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
Solicitação de exame técnico
#4.1
02/09/1988
RPI 903
Notificação de entrada na fase nacional - PCT
#1.3
07/02/1985
RPI 767
Carta-patente expirada
#21.1
Patente extinta em 27/07/99
07/08/2008
RPI 1957
16.3
Referência: RPI 988 de26.09.1989@Item apostilamento
06/01/1999
RPI 1482
Related
Same category
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.