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Official data from INPI

SISTEMA DE TRANSPORTE PARA POÇOS, PROCESSO DE MOVER UM ARTIGO POR UM POÇO E POÇO DE MINA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100836

Type

Invention Patent

Filing

02/28/1991

Publication

11/05/1991

Progress at the INPI

  1. Filing02/28/91
  2. Publication11/05/91
  3. Examination09/21/93
  4. Allowance05/03/94
  5. Grant12/27/94
  6. Expired06/22/10

The letters patent expired on 06/22/2010: 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: 06/22/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alphatrad S.A.

CH

Lamprey Investiment Holgings Limited

ZA

Inventors

B. S. (pessoa física)

ZA

M. G. (pessoa física)

ZA

Technical data

IPC Classification

Priority claims

GB

9004652.5 · 03/01/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/02/2006

06/22/2010

RPI 2059

Pedido de licença compulsória

#20.1

04/16/1996

RPI 1324

20.7

04/09/1996

RPI 1323

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

08/30/1994

RPI 1239

Deferimento

#9.1

05/03/1994

RPI 1222

Solicitação de exame técnico

#4.1

09/21/1993

RPI 1190

14.1

06/15/1993

RPI 1176

Publicação do pedido de patente

#3.1

11/05/1991

RPI 1092

Pedido de patente depositado

#2.1

08/27/1991

RPI 1082

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