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Official data from INPI

CIRCUITO ELETRÔNICO PARA EXTERMINAR ROEDORES NOCIVOS

Em AnáliseInvention Patent

Application data

Number

PI8701230

Type

Invention Patent

Filing

03/18/1987

Publication

09/20/1988

Progress at the INPI

  1. Filing03/18/87
  2. Publication09/20/88
  3. Examination11/16/88
  4. Allowance09/18/90
  5. Grant12/18/90
  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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Izaak Herszkopf Silbert, brasileiro

RJ, BR

Inventors

I. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/16/1988

RPI 943

Publicação do pedido de patente

#3.1

09/20/1988

RPI 935

Pedido de patente depositado

#2.1

06/23/1987

RPI 870

Carta-patente expirada

#21.1

Patente extinta em 18/03/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

12/18/1990

RPI 1046

Deferimento

#9.1

09/18/1990

RPI 1033

Exigência - art. 36 da LPI

#6.1

07/24/1990

RPI 1025

Conhecimento de parecer técnico

#7.1

02/13/1990

RPI 1006

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