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Official data from INPI

MECANISMO HIDROPNEUMÁTICO TENSIONADOR DE FERRAMENTAS DE CORTE EM MÁQUINAS OPERATRIZES

PublicadaInvention Patent

Application data

Number

PI8707069

Type

Invention Patent

Filing

12/18/1987

Publication

07/18/1989

Progress at the INPI

  1. Filing12/18/87
  2. Publication07/18/89
  3. Examination06/25/91
  4. Allowance01/05/93
  5. Grant07/27/93
  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.

Talk to a specialist

Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Metalúrgica Schiffer S/A

PR, BR

Inventors

R. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/18/1989

RPI 978

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Carta-patente expirada

#21.1

Patente extinta em 18/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/27/1993

RPI 1182

Notificação para pagamento de retribuição

#13.1

04/27/1993

RPI 1169

Deferimento

#9.1

01/05/1993

RPI 1153

Exigência - art. 36 da LPI

#6.1

06/16/1992

RPI 1124

Solicitação de exame técnico

#4.1

06/25/1991

RPI 1073

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