Concessão da patente
#16.1
03/29/1988
RPI 910
Back to search
Official data from INPI
PROCESSO DE PREPARACAO DE UM AGENTE FLOCULANTE PARA TRATAMENTO DE AGUAS OU RESIDUOS INDUSTRIAIS
ConcedidaInvention Patent
Application data
Number
PI8207498Type
Invention Patent
Filing
12/27/1982
Publication
07/31/1984
Progress at the INPI
- Filing12/27/82
- Publication07/31/84
- Examination10/30/84
- Allowance08/18/87
- Grant03/29/88
- Expired08/19/08
The letters patent expired on 08/19/2008: 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: 03/29/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
TANAC S A IND DE TANINO [BR]
Inventors
D. A. (pessoa física)
P. B. (pessoa física)
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
12/15/1987
RPI 895
Deferimento
#9.1
08/18/1987
RPI 878
11.8
05/26/1987
RPI 866
Retificação
#15.3
02/17/1987
RPI 852
Exigência - art. 36 da LPI
#6.1
10/15/1985
RPI 782
Solicitação de exame técnico
#4.1
10/30/1984
RPI 732
Publicação do pedido de patente
#3.1
07/31/1984
RPI 719
Pedido de patente depositado
#2.1
02/16/1983
RPI 643
Carta-patente expirada
#21.1
Patente extinta em 27/12/97
08/19/2008
RPI 1963
Related
Same category
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.