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Official data from INPI

CONTROLE HIDRAULICO DE EQUIPAMENTO DE POCOS SUBMARINOS

Em AnáliseInvention Patent

Application data

Number

PI8109007

Type

Invention Patent

Filing

05/01/1981

Publication

04/12/1983

Progress at the INPI

  1. Filing05/01/81
  2. Publication04/12/83
  3. Examination12/26/84
  4. Allowance05/27/86
  5. Grant07/28/87
  6. Terminated05/24/88

The patent was granted on 07/28/1987 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: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VETCO OFFSHORE IND INC [US]

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Inventors

H. [. (pessoa física)

M. [. (pessoa física)

S. [. (pessoa física)

W. [. (pessoa física)

Pessoa física

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

Concessão da patente

#16.1

07/28/1987

RPI 875

14.1

03/17/1987

RPI 856

14.7

03/10/1987

RPI 855

Notificação para pagamento de retribuição

#13.1

09/23/1986

RPI 831

Deferimento

#9.1

05/27/1986

RPI 814

Exigência - art. 36 da LPI

#6.1

05/21/1985

RPI 761

Solicitação de exame técnico

#4.1

12/26/1984

RPI 740

Notificação de entrada na fase nacional - PCT

#1.3

04/12/1983

RPI 651

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