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Official data from INPI

DESTRAVADOR MAGNÉTICO

Prazo de SigiloUtility Model

Application data

Number

MU6900970

Type

Utility Model

Filing

05/24/1989

Publication

04/16/1991

Progress at the INPI

  1. Filing05/24/89
  2. Publication04/16/91
  3. Examination08/13/91
  4. Allowance05/10/94
  5. Grant10/25/94
  6. Expired11/20/01

The letters patent expired on 11/20/2001: 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Daolite Sistemas Eletrônicos Ltda.

SP, BR

Inventors

Y. A. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/25/1989

RPI 979

Carta-patente expirada

#21.1

Patente extinta em 24/05/1999 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).

11/20/2001

RPI 1611

Concessão da patente

#16.1

10/25/1994

RPI 1247

100

05/10/1994

RPI 1223

Petição de recurso

#12.2

01/25/1994

RPI 1208

Indeferimento

#9.2

08/03/1993

RPI 1183

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

Publicação do pedido de patente

#3.1

04/16/1991

RPI 1063

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