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

APARELHO ELEVADOR,PROCESSO PARA CONDUZIR OPERACOES DE UM POCO EM AGUAS PROFUNDAS,CONJUNTO DE CABECA DE POCO E PROCESSO PARA REALIZAR OPERACOES DE PERFURACAO EM UM POCO

Em AnáliseInvention Patent

Application data

Number

PI7706900

Type

Invention Patent

Filing

10/15/1976

Publication

-

Progress at the INPI

  1. Filing10/15/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Terminated12/15/87

The patent was granted 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

EXXON PRODUCTION RESEARCH CO

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Notificação para pagamento de retribuição

#13.1

09/21/1982

RPI 622

15.0

01/19/1982

RPI 587

Exigência - art. 36 da LPI

#6.1

11/17/1981

RPI 578

Patent monitoring

Track this patent in real time.

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