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Official data from INPI

DETECTOR DE GASES E SISTEMA MONITOR DE CONCENTRAÇÃO DE UM GÁS SELECIONADO

DeferidaInvention Patent

Application data

Number

PI8403331

Type

Invention Patent

Filing

07/04/1984

Publication

06/18/1985

Progress at the INPI

  1. Filing07/04/84
  2. Publication06/18/85
  3. Examination03/24/87
  4. Allowance08/22/89
  5. Grant03/20/90
  6. Terminated09/12/95

The patent was granted on 03/20/1990 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Anglo American Corporation Of South Africa Limited

ZA

See this company's full portfolio

Inventors

B. B. (pessoa física)

ZA

E. E. (pessoa física)

ZA

N. W. (pessoa física)

ZA

Technical data

IPC Classification

Priority claims

ZA

83/4894 · 07/05/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

08/22/1989

RPI 983

Exigência - art. 36 da LPI

#6.1

03/21/1989

RPI 961

Solicitação de exame técnico

#4.1

03/24/1987

RPI 857

Publicação do pedido de patente

#3.1

06/18/1985

RPI 765

Pedido de patente depositado

#2.1

09/11/1984

RPI 725

Anuidade - prazo legal encerrado

#18.2

09/12/1995

RPI 1293

Concessão da patente

#16.1

03/20/1990

RPI 1010

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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