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Official data from INPI

VENTANEIRA DE DUPLA CÂMADA COM DIFUSOR

Em AnáliseUtility Model

Application data

Number

MU6001646

Type

Utility Model

Filing

12/09/1980

Publication

11/10/1981

Progress at the INPI

  1. Filing12/09/80
  2. Publication11/10/81
  3. Examination01/25/83
  4. Allowance08/28/84
  5. Grant04/30/85
  6. Terminated09/06/88

The patent was granted on 04/30/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

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Inventors

J. A. (pessoa física)

V. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/06/1988

RPI 933

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Deferimento

#9.1

08/28/1984

RPI 723

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

01/25/1983

RPI 640

Publicação antecipada

#3.2

11/10/1981

RPI 577

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