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Official data from INPI

SISTEMA E PROCESSO DE POSICIONAMNETO DE ANGULO DE TUBULACAO DE REVESTIMENTO

Em AnáliseInvention Patent

Application data

Number

PI8106871

Type

Invention Patent

Filing

02/28/1980

Publication

12/22/1981

Progress at the INPI

  1. Filing02/28/80
  2. Publication12/22/81
  3. Examination09/28/82
  4. Allowance08/07/84
  5. Grant05/28/85
  6. Terminated06/21/88

The patent was granted on 05/28/1985 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OFFSHORE CO [US]

Inventors

D. W. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Solicitação de exame técnico

#4.1

09/28/1982

RPI 623

Notificação de entrada na fase nacional - PCT

#1.3

12/22/1981

RPI 583

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