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Official data from INPI

PROCESSOS DE PREDIZER A PRESSÃO INTERSTICIAL EM UMA PROFUNDIDADE SELECIONADA EM UM FURO DE SONDAGEM E DE DETERMINAR AS PRESSÕES INTERSTICIAIS EM UMA FORMAÇÃO ABAIXO DE UMA LOCALIZAÇÃO DE PERFURAÇÃO PROPOSTA.

DeferidaInvention PatentPCT · US1990005263

Application data

Number

PI9007668

Type

Invention Patent

Filing

09/20/1990

Publication

06/02/1992

PCT

US1990005263

Progress at the INPI

Awaiting grant fee payment
  1. Filing09/20/90
  2. Publication06/02/92
  3. Examination06/15/93
  4. Allowance01/31/95
  5. Grant
  6. In force

The application was allowed by the INPI on 01/31/1995. The grant of the letters patent is being processed.

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Latest action published by the INPI: 07/04/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chevron Research And Technology Company

US

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Inventors

R. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/408,650 · 09/20/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

07/04/1995

RPI 1283

Deferimento

#9.1

01/31/1995

RPI 1261

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Notificação de entrada na fase nacional - PCT

#1.3

06/02/1992

RPI 1122

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