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Official data from INPI

COMPOSICAO AGLUTINANTE E PROCESSO PARA FORMAR E FUNDIR ARTIGOS DE METAIS LEVES

ConcedidaInvention Patent

Application data

Number

PI7903690

Type

Invention Patent

Filing

06/14/1978

Publication

-

Progress at the INPI

  1. Filing06/14/78
  2. Publication
  3. Examination
  4. Allowance03/05/85
  5. Grant10/29/85
  6. Expired04/04/95

The letters patent expired on 04/04/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ASHLAND OIL INC

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Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

06/25/1985

RPI 766

Deferimento

#9.1

03/05/1985

RPI 750

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Carta-patente expirada

#21.1

04/04/1995

RPI 1270

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