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Official data from INPI

PROCESSO DE SEPARAÇÃO DE DIAMANTES DA GANGA ASSOCIADA

Arquivada/ExtintaInvention PatentPCT · GB1987000565

Application data

Number

PI8707425

Type

Invention Patent

Filing

08/11/1987

Publication

11/01/1988

PCT

GB1987000565

Progress at the INPI

  1. Filing08/11/87
  2. Publication11/01/88
  3. Examination05/08/90
  4. Allowance02/08/94
  5. Grant08/30/94
  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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

De Beers Consolidated Mines Limited

ZA

Inventors

S. B. (pessoa física)

GB

Technical data

Priority claims

GB

8620247 · 08/20/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

11/01/1988

RPI 941

Carta-patente expirada

#21.1

Patente extinta em 11/08/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

05/31/1994

RPI 1226

Deferimento

#9.1

02/08/1994

RPI 1210

Exigência - art. 36 da LPI

#6.1

06/08/1993

RPI 1175

Solicitação de exame técnico

#4.1

05/08/1990

RPI 1017

14.1

02/13/1990

RPI 1006

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