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Official data from INPI

PROCESSO PARA A DIMINUICAO DO TEOR DE ACIDO DE UMA SOLUCAO DE ACIDO NITRICO COM O EMPREGO DE UMA CORRENTE DE ELETROLISE E DISPOSITIVO PARA A EXECUCAO DO PROCESSO

ConcedidaInvention Patent

Application data

Number

PI8108268

Type

Invention Patent

Filing

12/19/1980

Publication

10/05/1982

Progress at the INPI

  1. Filing12/19/80
  2. Publication10/05/82
  3. Examination03/22/83
  4. Allowance08/21/84
  5. Grant04/30/85
  6. Terminated02/04/92

The patent was granted on 04/30/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KERNFORSCHUNGSZ KARLSRUHE [DE]

Inventors

H. M. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Republicação - classificação IPC

#15.11

01/15/1985

RPI 743

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Solicitação de exame técnico

#4.1

03/22/1983

RPI 648

Publicação do pedido de patente

#3.1

10/05/1982

RPI 624

Pedido de patente depositado

#2.1

02/16/1982

RPI 591

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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