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Official data from INPI

PROCESSO APERFEIÇOADO PARA MIGRAR DADOS SÍSMICOS E PROCESSO APERFEIÇOADO DE FORMAR A IMAGEM DE DADOS SÍSMICOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003229

Type

Invention Patent

Filing

07/06/1990

Publication

01/28/1992

Progress at the INPI

  1. Filing07/06/90
  2. Publication01/28/92
  3. Examination04/26/94
  4. Allowance01/31/95
  5. Grant07/25/95
  6. Expired05/25/10

The letters patent expired on 05/25/2010: 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: 05/25/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Western Atlas International, Inc

US

See this company's full portfolio

Inventors

C. B. (pessoa física)

US

R. C. (pessoa física)

US

W. L. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 06/07/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

07/25/1995

RPI 1286

Deferimento

#9.1

01/31/1995

RPI 1261

Solicitação de exame técnico

#4.1

04/26/1994

RPI 1221

Publicação do pedido de patente

#3.1

01/28/1992

RPI 1104

Pedido de patente depositado

#2.1

01/02/1991

RPI 1048

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