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Official data from INPI

MÉTODO DE DESTINTAMENTO DE MATERIAIS DE PAPEL USADO

Arquivada/ExtintaInvention PatentPCT · GB1990000385

Application data

Number

PI9007224

Type

Invention Patent

Filing

03/14/1990

Publication

02/18/1992

PCT

GB1990000385

Progress at the INPI

  1. Filing03/14/90
  2. Publication02/18/92
  3. Examination04/13/93
  4. Allowance06/22/99
  5. Grant02/22/00
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BDL Specialist Products Limited

GB

Woodfree Limited

GB

Inventors

S. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8905942.2 · 03/15/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/03/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

02/22/2000

RPI 1520

Deferimento

#9.1

06/22/1999

RPI 1485

Exigência - art. 36 da LPI

#6.1

01/12/1999

RPI 1462

14.1

10/24/1995

RPI 1299

Solicitação de exame técnico

#4.1

04/13/1993

RPI 1167

Notificação de entrada na fase nacional - PCT

#1.3

02/18/1992

RPI 1107

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