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Official data from INPI

PROCESSO E INSTALACAO PARA A FORMACAO DE UM FELTRO DE FIBRAS

ConcedidaInvention Patent

Application data

Number

PI8401091

Type

Invention Patent

Filing

03/10/1983

Publication

10/16/1984

Progress at the INPI

  1. Filing03/10/83
  2. Publication10/16/84
  3. Examination08/26/86
  4. Allowance09/06/88
  5. Grant07/25/89
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SAINT GOBAIN ISOVER [FR]

Inventors

L. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Solicitação de exame técnico

#4.1

08/26/1986

RPI 827

Republicação - classificação IPC

#15.11

11/27/1984

RPI 736

Publicação do pedido de patente

#3.1

10/16/1984

RPI 730

Pedido de patente depositado

#2.1

05/15/1984

RPI 708

Carta-patente expirada

#21.1

Patente extinta em 09/03/99

08/19/2008

RPI 1963

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