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Official data from INPI

APARELHO E PROCESSO PARA SONDAGEM DE HIDROCARBONETOS NA DETECÇÃO INDIRETA DE RESERVATÓRIOS DE HIDROCARBONETOS.

Em AnáliseInvention Patent

Application data

Number

PI7908255

Type

Invention Patent

Filing

12/17/1979

Publication

-

Progress at the INPI

  1. Filing12/17/79
  2. Publication
  3. Examination
  4. Allowance05/04/82
  5. Grant02/22/83
  6. Terminated06/24/86

The patent was granted on 02/22/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Conoco Inc

US

See this company's full portfolio

Inventors

D. M. (pessoa física)

D. B. (pessoa física)

S. B. (pessoa física)

Technical data

IPC Classification

Priority claims

US

971.177 · 12/20/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/24/1986

RPI 818

Cessão de direito de exploração

#22.1

06/04/1985

RPI 763

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

09/08/1982

RPI 620

Deferimento

#9.1

05/04/1982

RPI 602

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