Concessão da patente
#16.1
07/30/1985
RPI 771
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Official data from INPI
PROCESSO PARA PREPARAÇÃO DE UMA COMPOSIÇÃO DE CELULOSE FIBROSA AGLOMERADA, TROCADORA DE ION
ConcedidaInvention Patent
Application data
Number
PI8105458Type
Invention Patent
Filing
08/26/1981
Publication
09/08/1982
Progress at the INPI
- Filing08/26/81
- Publication09/08/82
- Examination01/04/83
- Allowance01/15/85
- Grant07/30/85
- In force08/26/01
The patent is in force and subject to a compulsory licence request: third parties have asked for authorisation to exploit the technology.
Protection valid until:08/26/2001
Latest action published by the INPI: 07/30/1985. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
S. I. (pessoa física)
US
Inventors
L. H. (pessoa física)
US
R. A. (pessoa física)
US
Technical data
IPC Classification
Priority claims
US
195,049 · 10/08/1980
US
195,214 · 10/08/1980
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
05/07/1985
RPI 759
Deferimento
#9.1
01/15/1985
RPI 743
Exigência - art. 36 da LPI
#6.1
05/29/1984
RPI 710
Solicitação de exame técnico
#4.1
01/04/1983
RPI 637
Publicação do pedido de patente
#3.1
09/08/1982
RPI 620
Pedido de licença compulsória
#20.1
08/11/1992
RPI 1132
Pedido de licença compulsória
#20.1
10/29/1991
RPI 1091
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