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Official data from INPI

PROCESSO APERFEICOADO PARA A RECUPERACAO DE CONTEUDOS DE METAL POR FLOTACAO,E COMPOSICAO COLETORA PARA USO NO PROCESSO

ConcedidaInvention Patent

Application data

Number

PI7707839

Type

Invention Patent

Filing

11/26/1976

Publication

-

Progress at the INPI

  1. Filing11/26/76
  2. Publication
  3. Examination
  4. Allowance07/14/87
  5. Grant12/29/87
  6. Terminated01/21/92

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

TEKPLEX LTD

Inventors

W. A. (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

10/21/1986

RPI 835

Exigência - art. 36 da LPI

#6.1

02/26/1985

RPI 749

Exigência - art. 36 da LPI

#6.1

09/28/1982

RPI 623

15.0

01/19/1982

RPI 587

Exigência - art. 36 da LPI

#6.1

12/22/1981

RPI 583

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

20.5

10/08/1991

RPI 1088

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