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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE SAIS DE MAGNÉSIO HIDRATADOS

ConcedidaInvention Patent

Application data

Number

PI8203378

Type

Invention Patent

Filing

06/08/1982

Publication

05/31/1983

Progress at the INPI

  1. Filing06/08/82
  2. Publication05/31/83
  3. Examination08/13/85
  4. Allowance09/06/88
  5. Grant05/30/89
  6. Terminated02/11/92

The patent was granted on 05/30/1989 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Interox Chemicals Limited

GB

Inventors

G. H. (pessoa física)

GB

I. M. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8117841 · 06/10/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Exigência - art. 36 da LPI

#6.1

03/08/1988

RPI 907

Solicitação de exame técnico

#4.1

08/13/1985

RPI 773

Publicação do pedido de patente

#3.1

05/31/1983

RPI 658

Pedido de patente depositado

#2.1

07/27/1982

RPI 614

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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