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Official data from INPI

PROCESSO DE FABRICAÇÃO PARA OBTENÇÃO DE ARRUELA CÔNICA LISA

Em AnáliseInvention Patent
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Application data

Number

PI8703687

Type

Invention Patent

Filing

07/15/1987

Publication

01/31/1989
View on INPI

Progress at the INPI

  1. Filing07/15/87
  2. Publication01/31/89
  3. Examination10/24/89
  4. Allowance03/15/94
  5. Grant10/25/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Indústria de Molas Aço Ltda

SP, BR

J. S. (pessoa física)

SP, BR

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Inventors

J. S. (pessoa física)

BR

Technical data

IPC Classification

B21D 53/20B21H 1/00B21H 1/22

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/24/1989

RPI 992

2.2

01/31/1989

RPI 954

Publicação do pedido de patente

#3.1

01/31/1989

RPI 954

Pedido de patente depositado

#2.1

12/13/1988

RPI 947

Pedido de patente depositado

#2.1

10/20/1987

RPI 887

Carta-patente expirada

#21.1

Patente extinta em 15/07/2002

07/29/2008

RPI 1960

Transferência deferida

#25.1

12/30/1997

RPI 1410

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

06/28/1994

RPI 1230

Deferimento

#9.1

03/15/1994

RPI 1215

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