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Official data from INPI

APARELHO SUSPENSOR DE COLUNA PERDIDA E PROCESSO PARA ASSENTAR HIDRAULICAMENTE UM APARELHO SUSPENSOR DE COLUNA PERDIDA EM UMA TUBAGEM DE REVESTIMENTO DE POÇO

ArquivadaInvention Patent

Application data

Number

PI9001242

Type

Invention Patent

Filing

03/15/1990

Publication

03/26/1991

Progress at the INPI

  1. Filing03/15/90
  2. Publication03/26/91
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 03/15/1990 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/29/1993. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. I. (pessoa física)

US

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Inventors

J. B. (pessoa física)

J. I. (pessoa física)

Technical data

IPC Classification

Priority claims

US

325 235 · 03/16/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

06/29/1993

RPI 1178

Publicação do pedido de patente

#3.1

03/26/1991

RPI 1060

Pedido de patente depositado

#2.1

08/14/1990

RPI 1028

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