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Official data from INPI

RECIPIENTE ENCAIXÁVEL

ConcedidaInvention Patent

Application data

Number

PI8401859

Type

Invention Patent

Filing

04/23/1984

Publication

11/27/1984

Progress at the INPI

  1. Filing04/23/84
  2. Publication11/27/84
  3. Examination12/09/86
  4. Allowance09/27/88
  5. Grant07/25/89
  6. Terminated06/06/95

The patent was granted on 07/25/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

W. J. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8311027 · 04/22/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

01/10/1989

RPI 951

Deferimento

#9.1

09/27/1988

RPI 936

Conhecimento de parecer técnico

#7.1

02/02/1988

RPI 902

6.2

09/08/1987

RPI 881

Solicitação de exame técnico

#4.1

12/09/1986

RPI 842

Publicação do pedido de patente

#3.1

11/27/1984

RPI 736

Pedido de patente depositado

#2.1

06/26/1984

RPI 714

Anuidade - prazo legal encerrado

#18.2

06/06/1995

RPI 1279

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