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Official data from INPI

SONDA ROTATIVA E PROCESSO DE FURAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8100214

Type

Invention Patent

Filing

01/15/1981

Publication

-

Progress at the INPI

  1. Filing01/15/81
  2. Publication
  3. Examination10/11/83
  4. Allowance03/17/87
  5. Grant10/27/87
  6. Terminated02/04/92

The patent was granted on 10/27/1987 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: 10/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Drilling & Service U.K. Limited.

Inventors

F. J. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8001489 · 01/16/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/27/1987

RPI 888

Notificação para pagamento de retribuição

#13.1

07/14/1987

RPI 873

Deferimento

#9.1

03/17/1987

RPI 856

Exigência - art. 36 da LPI

#6.1

06/17/1986

RPI 817

Exigência - art. 36 da LPI

#6.1

10/16/1984

RPI 730

Solicitação de exame técnico

#4.1

10/11/1983

RPI 677

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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