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Official data from INPI

INSTALAÇÃO PARA A FORMAÇÃO DE UM FELTRO DE FIBRAS

ConcedidaInvention Patent

Application data

Number

PI8401831

Type

Invention Patent

Filing

04/18/1984

Publication

12/11/1984

Progress at the INPI

  1. Filing04/18/84
  2. Publication12/11/84
  3. Examination01/06/87
  4. Allowance05/16/89
  5. Grant11/28/89
  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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. S. (pessoa física)

FR

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Inventors

M. P. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

FR

8306431 · 04/20/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/12/1989

RPI 986

Deferimento

#9.1

05/16/1989

RPI 969

Solicitação de exame técnico

#4.1

01/06/1987

RPI 846

Publicação do pedido de patente

#3.1

12/11/1984

RPI 738

Pedido de patente depositado

#2.1

06/26/1984

RPI 714

Carta-patente expirada

#21.1

Patente extinta em 18/04/99

07/08/2008

RPI 1957

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