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Official data from INPI

SISTEMA DE TRANSPORTE PARA POÇO DE MINA, POÇO DE MINA, CAIXA DE ELEVADOR E POÇO PARA ELIMINAÇÃO DE RESÍDUOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005693

Type

Invention Patent

Filing

11/09/1990

Publication

09/17/1991

Progress at the INPI

  1. Filing11/09/90
  2. Publication09/17/91
  3. Examination09/21/93
  4. Allowance05/10/94
  5. Grant12/27/94
  6. Expired06/08/10

The letters patent expired on 06/08/2010: 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: 06/08/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. A. (pessoa física)

CH

Lamprey Investment Holdings Limited

ZA

Inventors

M. M. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8925505.3 · 11/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/11/2005

06/08/2010

RPI 2057

Pedido de licença compulsória

#20.1

04/30/1996

RPI 1326

20.7

04/16/1996

RPI 1324

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

09/27/1994

RPI 1243

Deferimento

#9.1

05/10/1994

RPI 1223

Solicitação de exame técnico

#4.1

09/21/1993

RPI 1190

14.1

06/22/1993

RPI 1177

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/30/1991

RPI 1065

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