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Official data from INPI

COMPORTA DIVISÓRIA.

ConcedidaInvention Patent

Application data

Number

PI8404022

Type

Invention Patent

Filing

08/10/1984

Publication

07/16/1985

Progress at the INPI

  1. Filing08/10/84
  2. Publication07/16/85
  3. Examination10/29/85
  4. Allowance09/08/87
  5. Grant06/28/88
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F.L. Smidth Comercio e Industria Ltda

SP, BR

F.L. Smidth, S.A., Comércio e Indústria.

See this company's full portfolio

Inventors

H. W. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8321732 · 08/12/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/08/1987

RPI 881

Exigência - art. 36 da LPI

#6.1

01/27/1987

RPI 849

Solicitação de exame técnico

#4.1

10/29/1985

RPI 784

Publicação do pedido de patente

#3.1

07/16/1985

RPI 769

Pedido de patente depositado

#2.1

10/16/1984

RPI 730

Carta-patente expirada

#21.1

Patente extinta em 10/08/99

07/08/2008

RPI 1957

20.4

04/16/1991

RPI 1063

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