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Official data from INPI

VÁLVULA AUTOMÁTICA DE REGULAGEM DE UM NÍVEL

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000020

Type

Invention Patent

Filing

01/03/1990

Publication

10/09/1990

Progress at the INPI

  1. Filing01/03/90
  2. Publication10/09/90
  3. Examination03/23/93
  4. Allowance11/21/95
  5. Grant08/27/96
  6. Expired05/11/10

The letters patent expired on 05/11/2010: 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: 05/11/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. F. (pessoa física)

FR

Inventors

T. F. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

89 00028 · 01/03/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 03/01/2005

05/11/2010

RPI 2053

Concessão da patente

#16.1

08/27/1996

RPI 1343

Deferimento

#9.1

11/21/1995

RPI 1303

6.2

07/25/1995

RPI 1286

Solicitação de exame técnico

#4.1

03/23/1993

RPI 1164

Publicação do pedido de patente

#3.1

10/09/1990

RPI 1036

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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