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Official data from INPI

DISPOSITIVO DE IMPREGNAÇÃO DE PELO MENOS UM ELEMENTO ALONGADO E MÉTODO DE IMPREGNAÇÃO

PublicadaInvention Patent

Application data

Number

PI8801036

Type

Invention Patent

Filing

03/09/1988

Publication

10/18/1988

Progress at the INPI

  1. Filing03/09/88
  2. Publication10/18/88
  3. Examination10/16/90
  4. Allowance03/01/95
  5. Grant09/26/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut Français du Petrole

FR

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Inventors

L. M. (pessoa física)

FR

M. H. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

87/03.295 · 03/09/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/18/1988

RPI 939

Pedido de patente depositado

#2.1

06/28/1988

RPI 923

Carta-patente expirada

#21.1

Patente extinta em 09/03/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

09/26/1995

RPI 1295

Notificação para pagamento de retribuição

#13.1

07/18/1995

RPI 1285

Republicação - classificação IPC

#15.11

05/02/1995

RPI 1274

Deferimento

#9.1

03/01/1995

RPI 1265

Solicitação de exame técnico

#4.1

10/16/1990

RPI 1037

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