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Official data from INPI

DISPOSITIVO SENSOR DO SENTIDO DE GIRO DA TURBINA EM HIDRÔMETROS ELETRÔNICOS

Em AnáliseInvention Patent

Application data

Number

PI8605257

Type

Invention Patent

Filing

10/28/1986

Publication

11/17/1987

Progress at the INPI

  1. Filing10/28/86
  2. Publication11/17/87
  3. Examination05/24/88
  4. Allowance03/16/93
  5. Grant07/27/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. P. (pessoa física)

SP, BR

See this company's full portfolio

Inventors

M. Z. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

10/11/1988

RPI 938

Solicitação de exame técnico

#4.1

05/24/1988

RPI 918

Publicação antecipada

#3.2

11/17/1987

RPI 891

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Carta-patente expirada

#21.1

Patente extinta em 28/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

07/27/1993

RPI 1182

Deferimento

#9.1

03/16/1993

RPI 1163

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