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Official data from INPI

VENTANEIRA INCLINADA ESPIRALADA DE DUPLA CÂMARA

Em AnáliseUtility Model

Application data

Number

MU6001333

Type

Utility Model

Filing

10/10/1980

Publication

-

Progress at the INPI

  1. Filing10/10/80
  2. Publication
  3. Examination10/20/81
  4. Allowance06/19/84
  5. Grant02/26/85
  6. Terminated10/10/89

The patent was granted on 02/26/1985 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: 10/10/1989. 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

D. J. (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

10/10/1989

RPI 990

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

06/19/1984

RPI 713

Exigência - art. 36 da LPI

#6.1

07/19/1983

RPI 665

Solicitação de exame técnico

#4.1

10/20/1981

RPI 574

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