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Official data from INPI

ESTACA-PRANCHA DE CONCRETO E MÉTODO DE FABRICAÇÃO DE ESTACAS-PRANCHAS DE CONCRETO

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9003943

Type

Invention Patent

Filing

08/03/1990

Publication

02/25/1992
View on INPI

Progress at the INPI

  1. Filing08/03/90
  2. Publication02/25/92
  3. Examination04/26/94
  4. Allowance06/04/96
  5. Grant04/29/97
  6. Expired05/25/10

The letters patent expired on 05/25/2010: 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: 05/25/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. S. (pessoa física)

SP, BR

Inventors

J. S. (pessoa física)

BR

Technical data

IPC Classification

E02D 29/02E02D 5/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 03/08/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

04/29/1997

RPI 1378

Deferimento

#9.1

06/04/1996

RPI 1331

Exigência - art. 36 da LPI

#6.1

11/21/1995

RPI 1303

Exigência - art. 36 da LPI

#6.1

07/25/1995

RPI 1286

Solicitação de exame técnico

#4.1

04/26/1994

RPI 1221

Publicação do pedido de patente

#3.1

02/25/1992

RPI 1108

Pedido de patente depositado

#2.1

02/19/1991

RPI 1055

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