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Official data from INPI

PROCESSO PARA A RETIRADA E/OU TRANSFORMAÇÃO DE LIGNINA E APARELHAGEM USADA NO PROCESSO

Arquivada/ExtintaInvention PatentPCT · EP1987000635

Application data

Number

PI8707844

Type

Invention Patent

Filing

10/24/1987

Publication

10/03/1989

PCT

EP1987000635

Progress at the INPI

  1. Filing10/24/87
  2. Publication10/03/89
  3. Examination06/26/90
  4. Allowance08/23/94
  5. Grant04/25/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. C. (pessoa física)

DE

Inventors

H. C. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 36 208.5 · 10/24/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/03/1989

RPI 989

Carta-patente expirada

#21.1

Patente extinta em 24/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

12/20/1994

RPI 1255

Deferimento

#9.1

08/23/1994

RPI 1238

Exigência - art. 36 da LPI

#6.1

05/19/1992

RPI 1120

Solicitação de exame técnico

#4.1

06/26/1990

RPI 1024

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