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Official data from INPI

INSTRUMENTO PARA MEDICAO DA DIRECAO DE UM FURO DE SONDAGEM E PROCESSO DE LEVANTAMENTO TOPOGRAFICO DE UM FURO DE SONDAGEM

Em AnáliseInvention Patent

Application data

Number

PI7708485

Type

Invention Patent

Filing

12/20/1977

Publication

-

Progress at the INPI

  1. Filing12/20/77
  2. Publication
  3. Examination09/14/82
  4. Allowance04/19/83
  5. Grant02/28/84
  6. Terminated12/15/87

The patent was granted on 02/28/1984 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. A. (pessoa física)

R. M. (pessoa física)

Inventors

R. A. (pessoa física)

R. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

02/28/1984

RPI 697

14.1

11/01/1983

RPI 680

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Solicitação de exame técnico

#4.1

09/14/1982

RPI 621

14.1

07/20/1982

RPI 613

14.4

07/13/1982

RPI 612

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