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Official data from INPI

ELEVADOR À GÁS PARA CONTROLAR FLUXO DE GÁS ENTRE O EXTERIOR E O INTERIOR DE UMA TUBULAÇÃO DE POÇO, INSTALAÇÃO DE POÇO PARA REALIZAR OPERAÇÕES DE ELEVAÇÃO A GÁS E MÉTODO PARA COLOCAR UM POÇO DE ELEVAÇÃO À GÁS

ArquivadaInvention Patent

Application data

Number

PI9102516

Type

Invention Patent

Filing

06/04/1991

Publication

01/21/1992

Progress at the INPI

  1. Filing06/04/91
  2. Publication01/21/92
  3. Abandoned04/05/94
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/24/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. C. (pessoa física)

US

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Inventors

K. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

SN 07/533,019 · 06/04/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

12/24/1996

RPI 1360

6.2

03/12/1996

RPI 1319

Solicitação de exame técnico

#4.1

04/05/1994

RPI 1218

Publicação do pedido de patente

#3.1

01/21/1992

RPI 1103

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