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Official data from INPI

ACOPLAMENTO TUBULAR, SEÇÃO DE MANGA, MANGA PARA REVESTIR A PAREDE DE UM POÇO E RESPECTIVO PROCESSO PARA SUA FABRICAÇÃO.

IndeferidaInvention Patent

Application data

Number

PI8204950

Type

Invention Patent

Filing

08/24/1982

Publication

08/02/1983

Progress at the INPI

Under appeal
  1. Filing08/24/82
  2. Publication08/02/83
  3. Examination10/08/85
  4. Refused05/05/87
  5. Grant
  6. In force

The application was refused by the INPI on 05/05/1987. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 05/05/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Drillcon Industries Limited

GB

Inventors

J. N. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8125759 · 08/24/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

05/05/1987

RPI 863

Conhecimento de parecer técnico

#7.1

09/23/1986

RPI 831

Solicitação de exame técnico

#4.1

10/08/1985

RPI 781

Republicação - classificação IPC

#15.11

02/14/1984

RPI 695

Publicação do pedido de patente

#3.1

08/02/1983

RPI 667

Pedido de patente depositado

#2.1

10/13/1982

RPI 625

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