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Official data from INPI

VÁLVULA DE ISOLAÇÃO REMOVÍVEL E EXPANSÍVEL, CONJUNTO DE SEDE DE VÁLVULA, DISPOSITIVO DE CHAPELETA DE VÁLVULA, SISTEMA DE OBTURAR COM CASCALHO, MARTELO DE CAIXA CEGA COM DENTES E MÉTODO PARA EFETUAR ACABAMENTO E MANUTENÇÃO DE POÇO SUBTERRÂNEO

ArquivadaInvention Patent

Application data

Number

PI9103050

Type

Invention Patent

Filing

07/12/1991

Publication

02/11/1992

Progress at the INPI

  1. Filing07/12/91
  2. Publication02/11/92
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 07/12/1991 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/28/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. C. (pessoa física)

US

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Inventors

D. P. (pessoa física)

US

J. P. (pessoa física)

US

R. E. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/522,109 · 07/13/1990

US

07/698,449 · 05/10/1991

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

06/28/1994

RPI 1230

Publicação do pedido de patente

#3.1

02/11/1992

RPI 1106

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