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Official data from INPI

SUPORTE PARA BOBINAS DE CHAPA DE ACO

ConcedidaInvention Patent

Application data

Number

PI8007275

Type

Invention Patent

Filing

11/07/1980

Publication

07/13/1982

Progress at the INPI

  1. Filing11/07/80
  2. Publication07/13/82
  3. Examination09/18/84
  4. Allowance09/17/85
  5. Grant06/24/86
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto Nacional dos Transportadores de Aço - INTRA.

RJ, BR

Inventors

C. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

01/21/1986

RPI 796

Deferimento

#9.1

09/17/1985

RPI 778

Exigência - art. 36 da LPI

#6.1

03/05/1985

RPI 750

Solicitação de exame técnico

#4.1

09/18/1984

RPI 726

Publicação do pedido de patente

#3.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

20.7

07/05/1994

RPI 1231

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