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Official data from INPI

PROCESSO DE MONTAGEM DE UMA CELULA ELETROLITICA TIPO FILTROPRENSA MONOPOLAR E SEU PROCESSO DE INSTALACAO

ConcedidaInvention Patent

Application data

Number

PI8101724

Type

Invention Patent

Filing

04/21/1980

Publication

01/12/1982

Progress at the INPI

  1. Filing04/21/80
  2. Publication01/12/82
  3. Examination04/13/82
  4. Allowance07/14/87
  5. Grant12/29/87
  6. Terminated02/04/92

The patent was granted on 12/29/1987 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OLIN CORP

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Inventors

K. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

11/25/1986

RPI 840

Solicitação de exame técnico

#4.1

04/13/1982

RPI 599

Publicação do pedido de patente

#3.1

01/12/1982

RPI 586

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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