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Official data from INPI

PROCESSO DE ANCORAGEM ESTANQUE DE UMA BUCHA SOBRE UM TUBO E DISPOSITIVO DE UNIAO DE TUBO DELGADO

Em AnáliseInvention Patent
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Application data

Number

PI8401669

Type

Invention Patent

Filing

04/11/1983

Publication

11/20/1984
View on INPI

Progress at the INPI

Technical opinion to answer
  1. Filing04/11/83
  2. Publication11/20/84
  3. Examination12/23/86
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HYDEXCO [FR]

Inventors

B. A. (pessoa física)

F. J. (pessoa física)

Technical data

IPC Classification

F16L 19/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

10/31/1989

RPI 993

6.2

09/22/1987

RPI 883

Pedido de certificado de adição de invenção

#5.1

05/05/1987

RPI 863

Solicitação de exame técnico

#4.1

12/23/1986

RPI 844

Publicação do pedido de patente

#3.1

11/20/1984

RPI 735

Pedido de patente depositado

#2.1

06/19/1984

RPI 713

Retificação

#15.3

09/18/1990

RPI 1033

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