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Official data from INPI

PROCESSO PARA AUMENTAR O GRAU DE EXTRAÇÃO DE ÓLEO

Em AnáliseInvention Patent

Application data

Number

PI8607011

Type

Invention Patent

Filing

12/03/1986

Publication

12/01/1987

Progress at the INPI

  1. Filing12/03/86
  2. Publication12/01/87
  3. Examination08/29/89
  4. Allowance04/30/91
  5. Grant11/26/91
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Industrikontakt Ing. O. Ellingsen & Co.

NO

Inventors

O. E. (pessoa física)

NO

Technical data

IPC Classification

Priority claims

NO

854852 · 12/03/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/29/1989

RPI 984

Notificação de entrada na fase nacional - PCT

#1.3

12/01/1987

RPI 893

Carta-patente expirada

#21.1

Patente extinta em 03/12/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

11/26/1991

RPI 1095

Notificação para pagamento de retribuição

#13.1

08/13/1991

RPI 1080

Deferimento

#9.1

04/30/1991

RPI 1065

Exigência - art. 36 da LPI

#6.1

11/27/1990

RPI 1043

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