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Official data from INPI

UNIDADE OBTURADORA, COMBINAÇÃO QUE INCLUÍ A UNIDADE OBTURADORA, ELEMENTOS POSTIÇOS METÁLICOS E APARELHO DE UNIDADE OBTURADORA

Em AnáliseInvention Patent

Application data

Number

PI8203721

Type

Invention Patent

Filing

06/25/1982

Publication

06/21/1983

Progress at the INPI

  1. Filing06/25/82
  2. Publication06/21/83
  3. Examination08/27/85
  4. Allowance
  5. Grant
  6. In force

Published on 06/21/1983, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 10/25/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hydril Company

US

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Inventors

E. M. (pessoa física)

US

F. M. (pessoa física)

US

W. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

277,341 · 06/25/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

101

10/25/1988

RPI 940

Recurso

#12.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

09/23/1986

RPI 831

Solicitação de exame técnico

#4.1

08/27/1985

RPI 775

Publicação do pedido de patente

#3.1

06/21/1983

RPI 661

Pedido de patente depositado

#2.1

08/10/1982

RPI 616

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