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Official data from INPI

ESTRUTURA ALVEOLAR DE COBERTURA E PROCESSO DE REALIZAÇÃO DE UMA ESTRUTURA ALVEOLAR DE COBERTURA

Em AnáliseInvention Patent

Application data

Number

PI8502310

Type

Invention Patent

Filing

05/10/1985

Publication

01/21/1986

Progress at the INPI

  1. Filing05/10/85
  2. Publication01/21/86
  3. Examination02/02/88
  4. Allowance11/27/90
  5. Grant05/28/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 02/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut Français du Petrole

FR

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Inventors

M. H. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

84/07.282 · 05/11/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/02/1988

RPI 902

Publicação do pedido de patente

#3.1

01/21/1986

RPI 796

Pedido de patente depositado

#2.1

07/23/1985

RPI 770

Carta-patente expirada

#21.1

Patente extinta em 10/05/2000

07/15/2008

RPI 1958

Republicação - classificação IPC

#15.11

11/05/1991

RPI 1092

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

03/12/1991

RPI 1058

Deferimento

#9.1

11/27/1990

RPI 1043

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