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Official data from INPI

MÉTODO E DISPOSITIVO PARA UTILIZAÇÃO E RECUPERAÇÃO DE FERRAMENTAS DE POÇOS USADAS COM TUBULAÇÃO EM SERPENTINA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000028

Type

Invention Patent

Filing

01/04/1990

Publication

10/09/1990

Progress at the INPI

  1. Filing01/04/90
  2. Publication10/09/90
  3. Examination06/02/92
  4. Allowance04/12/94
  5. Grant12/27/94
  6. Expired05/11/10

The letters patent expired on 05/11/2010: 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: 05/11/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pumptech N.V.

BE

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Inventors

K. N. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/303,592 · 01/27/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/01/2005

05/11/2010

RPI 2053

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

08/09/1994

RPI 1236

Deferimento

#9.1

04/12/1994

RPI 1219

Solicitação de exame técnico

#4.1

06/02/1992

RPI 1122

Publicação do pedido de patente

#3.1

10/09/1990

RPI 1036

Pedido de patente depositado

#2.1

05/01/1990

RPI 1016

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