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Official data from INPI

PROCESSO DE SEPARAÇÃO DE MINERAIS

ConcedidaInvention Patent

Application data

Number

PI8404947

Type

Invention Patent

Filing

09/27/1984

Publication

05/06/1986

Progress at the INPI

  1. Filing09/27/84
  2. Publication05/06/86
  3. Examination08/12/86
  4. Allowance08/02/88
  5. Grant09/26/89
  6. Terminated10/16/90

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SL - Serviços e Participações S/C Ltda

MG, BR

Inventors

L. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

11/29/1988

RPI 945

Deferimento

#9.1

08/02/1988

RPI 928

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

05/06/1986

RPI 811

Pedido de patente depositado

#2.1

12/11/1984

RPI 738

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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