Concessão da patente
#16.1
10/27/1987
RPI 888
Back to search
Official data from INPI
PROCESSOS PARA MELHORAR A RECUPERAÇÃO DE TEORES DE CARBONATO DE SÓDIO E PROCESSO PARA A PRODUÇÃO DE CARBONATO DE SÓDIO.
ConcedidaInvention Patent
Application data
Number
PI8105705Type
Invention Patent
Filing
09/04/1981
Publication
04/19/1983
Progress at the INPI
- Filing09/04/81
- Publication04/19/83
- Examination04/23/85
- Allowance04/22/87
- Grant10/27/87
- In force09/04/01
The patent was granted on 10/27/1987 and is in force until 09/04/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.
Protection valid until:09/04/2001
Latest action published by the INPI: 10/27/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
F. C. (pessoa física)
US
Inventors
C. C. (pessoa física)
R. F. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Deferimento
#9.1
04/22/1987
RPI 861
Exigência - art. 36 da LPI
#6.1
10/29/1985
RPI 784
Solicitação de exame técnico
#4.1
04/23/1985
RPI 757
Publicação do pedido de patente
#3.1
04/19/1983
RPI 652
Pedido de patente depositado
#2.1
10/20/1981
RPI 574
Related
From the same holder
Same category
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.