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Official data from INPI

DISPOSITIVO PARA PROTEÇÃO E REFRIGERAÇÃO DE TERMINAIS DE VÍDEO

ConcedidaUtility Model

Application data

Number

MU6400374

Type

Utility Model

Filing

03/14/1984

Publication

10/22/1985

Progress at the INPI

  1. Filing03/14/84
  2. Publication10/22/85
  3. Examination08/25/87
  4. Allowance01/24/89
  5. Grant08/29/89
  6. Expired10/04/94

The letters patent expired on 10/04/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

See this company's full portfolio

Inventors

C. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/24/1989

RPI 953

Solicitação de exame técnico

#4.1

08/25/1987

RPI 879

Publicação do pedido de patente

#3.1

10/22/1985

RPI 783

Pedido de patente depositado

#2.1

05/15/1984

RPI 708

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

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