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Official data from INPI

APERFEIÇOAMENTO EM TUNEL DE AVANÇO SOB PRESSÃO

IndeferidaInvention Patent
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Application data

Number

PI9005853

Type

Invention Patent

Filing

11/12/1990

Publication

07/23/1991
View on INPI

Progress at the INPI

Under appeal
  1. Filing11/12/90
  2. Publication07/23/91
  3. Examination02/04/92
  4. Refused12/13/94
  5. Grant
  6. In force

The application was refused by the INPI on 12/13/1994. The invention was never patented.

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Latest action published by the INPI: 12/13/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Construtora Civil e Industrial S/A Consisa

SP, BR

Inventors

C. C. (pessoa física)

Technical data

IPC Classification

E21D 9/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

12/13/1994

RPI 1254

Conhecimento de parecer técnico

#7.1

04/19/1994

RPI 1220

Solicitação de exame técnico

#4.1

02/24/1993

RPI 1160

Solicitação de exame não realizada

#4.2

09/22/1992

RPI 1138

Solicitação de exame técnico

#4.1

02/04/1992

RPI 1105

Publicação antecipada

#3.2

07/23/1991

RPI 1077

Pedido de patente depositado

#2.1

05/14/1991

RPI 1067

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