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Official data from INPI

PLAINA LIMADORA PORTÁTIL PARA USINAGEM NO CAMPO

ConcedidaInvention Patent

Application data

Number

PI8206986

Type

Invention Patent

Filing

12/02/1982

Publication

07/10/1984

Progress at the INPI

  1. Filing12/02/82
  2. Publication07/10/84
  3. Examination05/27/86
  4. Allowance03/31/87
  5. Grant11/24/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 11/24/1987. 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

C. D. (pessoa física)

F. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Notificação para pagamento de retribuição

#13.1

08/11/1987

RPI 877

Deferimento

#9.1

03/31/1987

RPI 858

Solicitação de exame técnico

#4.1

05/27/1986

RPI 814

Publicação do pedido de patente

#3.1

07/10/1984

RPI 716

Pedido de patente depositado

#2.1

01/25/1983

RPI 640

Carta-patente expirada

#21.1

Patente extinta em 02/12/97

07/01/2008

RPI 1956

20.7

10/25/1994

RPI 1247

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