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Official data from INPI

SUSPENSOR PARA UMA CABEÇA DE POÇO SUBMARINO

PublicadaInvention Patent

Application data

Number

PI8801847

Type

Invention Patent

Filing

04/19/1988

Publication

11/22/1988

Progress at the INPI

  1. Filing04/19/88
  2. Publication11/22/88
  3. Examination04/02/91
  4. Allowance11/03/93
  5. Grant05/31/94
  6. Terminated12/31/96

The patent was granted on 05/31/1994 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: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cameron Iron Works USA, Inc

US

See this company's full portfolio

Inventors

W. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

044.412 · 04/30/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/22/1988

RPI 944

Pedido de patente depositado

#2.1

09/20/1988

RPI 935

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

11/03/1993

RPI 1196

6.2

03/16/1993

RPI 1163

Solicitação de exame técnico

#4.1

04/02/1991

RPI 1061

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