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Official data from INPI

APERFEIÇOAMENTO EM PROCESSO DE LAMINAÇÃO A QUENTE EM LAMINADORES REVERSÍVEL OU IRREVERSÍVEL

ConcedidaInvention Patent

Application data

Number

PI8205822

Type

Invention Patent

Filing

10/05/1982

Publication

05/08/1984

Progress at the INPI

  1. Filing10/05/82
  2. Publication05/08/84
  3. Examination05/28/85
  4. Allowance05/17/88
  5. Grant12/27/88
  6. Terminated01/03/95

The patent was granted on 12/27/1988 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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderurgica Paulista - COSIPA

SP, BR

See this company's full portfolio

Inventors

V. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Solicitação de exame técnico

#4.1

05/28/1985

RPI 762

Publicação do pedido de patente

#3.1

05/08/1984

RPI 707

Pedido de patente depositado

#2.1

11/30/1982

RPI 632

Anuidade - prazo legal encerrado

#18.2

01/03/1995

RPI 1257

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