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Official data from INPI

APARELHO PARA SUSTENTAR UMA COLUNA TUBULAR SE ESTENDENDO PARA O INTERIOR DA PERFURACAO DE UM POCO A PARTIR DE UMA CABECA DE POCO CIRCUNDANTE E PROCESSO DE BAIXAR UM DISPOSITIVO DE SUSPENSAO DE TUBULAGEM

PublicadaInvention Patent

Application data

Number

PI8601871

Type

Invention Patent

Filing

04/26/1985

Publication

04/07/1987

Progress at the INPI

  1. Filing04/26/85
  2. Publication04/07/87
  3. Examination
  4. Allowance10/02/90
  5. Abandoned
  6. In force

The application was allowed on 10/02/1990 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 04/07/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VETCO OFFSHORE IND INC [US]

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Inventors

P. R. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/07/1987

RPI 859

14.1

12/30/1986

RPI 845

Pedido de patente depositado

#2.1

11/04/1986

RPI 837

Arquivamento - Art. 38 §2° da LPI

#11.4

09/10/1991

RPI 1084

Notificação para pagamento de retribuição

#13.1

01/15/1991

RPI 1050

Deferimento

#9.1

10/02/1990

RPI 1035

14.4

03/01/1990

RPI 1007

14.7

03/01/1990

RPI 1007

6.2

01/16/1990

RPI 1002

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