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Official data from INPI

FERRAMENTA DE FUROS VERTICAIS

Arquivada/ExtintaInvention PatentPCT · EP1996000785
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Application data

Number

PI9607388

Type

Invention Patent

Filing

02/22/1996

Publication

11/25/1997

PCT

EP1996000785
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Progress at the INPI

  1. Filing02/22/96
  2. Publication11/25/97
  3. Examination
  4. Allowance10/24/00
  5. Grant11/26/02
  6. Expired04/26/16

The letters patent expired on 04/26/2016: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 04/26/2016. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V.

NL

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Inventors

A. F. (pessoa física)

NL

P. O. (pessoa física)

NL

S. C. (pessoa física)

NL

Technical data

IPC Classification

E21B 17/10E21B 44/00

Priority claims

EP

95200459.6 · 02/23/1995

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 22/02/2016

04/26/2016

RPI 2364

Concessão da patente

#16.1

11/26/2002

RPI 1664

9.1.4

"Referente à RPI 1555, de 24/10/2000, item de despacho 9.1".

11/12/2002

RPI 1662

Concessão anulada

#16.2

Referente a RPI 1570 de 06/02/2001

11/05/2002

RPI 1661

Concessão da patente

#16.1

02/06/2001

RPI 1570

Deferimento

#9.1

10/24/2000

RPI 1555

Exigência - art. 36 da LPI

#6.1

06/27/2000

RPI 1538

Notificação de entrada na fase nacional - PCT

#1.3

11/25/1997

RPI 1408

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