(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

DISPOSITIVO DE PERFURACAO PARA SONDAGENS

ConcedidaInvention Patent

Application data

Number

PI8105085

Type

Invention Patent

Filing

08/12/1980

Publication

04/20/1982

Progress at the INPI

  1. Filing08/12/80
  2. Publication04/20/82
  3. Examination04/17/84
  4. Allowance08/13/85
  5. Grant03/25/86
  6. Terminated08/07/90

The patent was granted on 03/25/1986 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: 03/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PRAD RES & DEV NV

Inventors

C. B. (pessoa física)

C. P. (pessoa física)

P. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/17/1985

RPI 791

Deferimento

#9.1

08/13/1985

RPI 773

Republicação - classificação IPC

#15.11

04/30/1985

RPI 758

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

04/17/1984

RPI 704

Publicação do pedido de patente

#3.1

04/20/1982

RPI 600

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.