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Official data from INPI

DISPOSITIVO DE LIMPEZA PARA TANQUES DE ARMAZENAMENTO

Em AnáliseInvention Patent

Application data

Number

PI8802751

Type

Invention Patent

Filing

06/02/1988

Publication

10/04/1988

Progress at the INPI

  1. Filing06/02/88
  2. Publication10/04/88
  3. Examination10/11/88
  4. Allowance01/02/91
  5. Grant10/29/91
  6. Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nordon Industrias Metalurgicas S/A

SP, BR

Nordon Indústrias Metalúrgicas S/A

SP, BR

Inventors

J. O. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/11/1988

RPI 938

Publicação antecipada

#3.2

10/04/1988

RPI 937

Pedido de patente depositado

#2.1

09/27/1988

RPI 936

Carta-patente expirada

#21.1

Patente extinta em 02/06/2003

09/02/2008

RPI 1965

Alteração de sede deferida

#25.7

08/05/1997

RPI 1392

Concessão da patente

#16.1

10/29/1991

RPI 1091

Notificação para pagamento de retribuição

#13.1

04/16/1991

RPI 1063

Deferimento

#9.1

01/02/1991

RPI 1048

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