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Official data from INPI

SISTEMA DE TRANSFERÊNCIA DE PEÇAS

Em AnáliseInvention Patent

Application data

Number

PI8701725

Type

Invention Patent

Filing

03/20/1987

Publication

08/11/1987

Progress at the INPI

  1. Filing03/20/87
  2. Publication08/11/87
  3. Examination12/15/87
  4. Allowance05/07/91
  5. Grant03/31/92
  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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Prodty Engenharia e Comércio Ltda.

SP, BR

Inventors

L. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/15/1987

RPI 895

Solicitação de exame não realizada

#4.2

09/22/1987

RPI 883

Publicação antecipada

#3.2

08/11/1987

RPI 877

Pedido de patente depositado

#2.1

08/04/1987

RPI 876

Carta-patente expirada

#21.1

Patente extinta em 20/03/2002

07/29/2008

RPI 1960

20.4

12/01/1992

RPI 1148

Concessão da patente

#16.1

03/31/1992

RPI 1113

Notificação para pagamento de retribuição

#13.1

08/20/1991

RPI 1081

Deferimento

#9.1

05/07/1991

RPI 1066

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