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Official data from INPI

APERFEICOAMENTOS EM PROCESSO DE GRANULACAO ELETROLITICA DE ALUMINIO OU SUAS LIGAS,PROCESSO DE PRODUCAO DE CHAPAS SENSIVEIS A LUZ E PRODUTOS RESULTANTES DO DITO PROCESSO

ConcedidaInvention Patent

Application data

Number

PI7802326

Type

Invention Patent

Filing

04/16/1977

Publication

-

Progress at the INPI

  1. Filing04/16/77
  2. Publication
  3. Examination
  4. Allowance05/14/85
  5. Grant11/26/85
  6. Expired07/06/93

The letters patent expired on 07/06/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VICKERS LTD

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Inventors

O. M. (pessoa física)

S. G. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/26/1985

RPI 788

Notificação para pagamento de retribuição

#13.1

09/03/1985

RPI 776

Deferimento

#9.1

05/14/1985

RPI 760

Exigência - art. 36 da LPI

#6.1

12/11/1984

RPI 738

15.0

06/29/1982

RPI 610

6.2

01/26/1982

RPI 588

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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