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Official data from INPI

SERRA CIRCULAR QUÁDRUPLA

Prazo de SigiloInvention Patent

Application data

Number

PI8901101

Type

Invention Patent

Filing

03/09/1989

Publication

10/09/1990

Progress at the INPI

  1. Filing03/09/89
  2. Publication10/09/90
  3. Examination02/26/91
  4. Allowance05/12/92
  5. Grant04/27/93
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dambroz S/A Indústria Mecânica e Metalúrgica

RS, BR

Inventors

L. D. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/25/1989

RPI 966

Carta-patente expirada

#21.1

Patente extinta em 09/03/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

10/06/1992

RPI 1140

Deferimento

#9.1

05/12/1992

RPI 1119

Solicitação de exame técnico

#4.1

02/26/1991

RPI 1056

Publicação do pedido de patente

#3.1

10/09/1990

RPI 1036

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