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Official data from INPI

FERRAMENTA PARA FUNDO DE FURO

Arquivada/ExtintaInvention PatentPCT · GB1993000465

Application data

Number

PI9306019

Type

Invention Patent

Filing

03/05/1993

Publication

11/18/1997

PCT

GB1993000465

Progress at the INPI

  1. Filing03/05/93
  2. Publication11/18/97
  3. Examination
  4. Allowance08/18/98
  5. Grant12/29/98
  6. Expired07/09/13

The letters patent expired on 07/09/2013: 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: 07/09/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

3 D Stabilisers Limited

GB

Ledge 101 Limited

GB

Pathfinder Energy Services Limited

GB

Inventors

D. W. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

9204910.5 · 03/05/1992

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 05/03/2013

07/09/2013

RPI 2218

Transferência deferida

#25.1

Transferido de: 3 D Stabilisers Limited

02/09/2005

RPI 1779

Alteração de nome deferida

#25.4

Alterado de: Ledge 101 Limited

01/25/2005

RPI 1777

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

08/18/1998

RPI 1443

Notificação de entrada na fase nacional - PCT

#1.3

11/18/1997

RPI 1407

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