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Official data from INPI

DISPOSITIVO COM QUADRANTE DE SEGREDO PARA PRENDEDORES DESLIZANTES

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905578

Type

Invention Patent

Filing

10/27/1989

Publication

04/30/1991

Progress at the INPI

  1. Filing10/27/89
  2. Publication04/30/91
  3. Examination08/06/91
  4. Allowance12/03/96
  5. Grant08/26/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Y. C. (pessoa física)

JP

Y. K. (pessoa física)

JP

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Inventors

K. W. (pessoa física)

JP

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/10/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

08/26/1997

RPI 1395

Deferimento

#9.1

12/03/1996

RPI 1357

14.4

08/08/1995

RPI 1288

Solicitação de exame técnico

#4.1

08/06/1991

RPI 1079

Publicação do pedido de patente

#3.1

04/30/1991

RPI 1065

Pedido de patente depositado

#2.1

03/01/1990

RPI 1007

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