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Official data from INPI

BANHO AQUOSO DE ELETRODEPOSICAO,APROPRIADO PARA DEPOSICAO DE LIGAS DE PRATA-OURO,E PROCESSO DE REVESTIMENTO

ConcedidaInvention Patent

Application data

Number

PI7704777

Type

Invention Patent

Filing

07/20/1977

Publication

-

Progress at the INPI

  1. Filing07/20/77
  2. Publication
  3. Examination
  4. Allowance11/01/83
  5. Grant04/24/84
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 04/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OXY METAL INDUSTRIES CORP

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Inventors

D. J. (pessoa física)

S. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/14/1984

RPI 695

Deferimento

#9.1

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

05/18/1982

RPI 604

Conhecimento de parecer técnico

#7.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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