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Official data from INPI

PROCESSO DE GRAVAÇLÃO POOR ELETRÓLISE

Em AnáliseInvention Patent
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Application data

Number

PI8005117

Type

Invention Patent

Filing

08/14/1980

Publication

04/13/1982
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Progress at the INPI

  1. Filing08/14/80
  2. Publication04/13/82
  3. Examination07/27/82
  4. Allowance08/02/83
  5. Grant02/28/84
  6. Expired09/19/95

The letters patent expired on 09/19/1995: 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: 07/10/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. B. (pessoa física)

SP, BR

Oscar Flues & Cia. LTDA.

SP, BR

Inventors

D. M. (pessoa física)

Technical data

IPC Classification

C25F 3/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

07/10/1984

RPI 716

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

11/22/1983

RPI 683

Deferimento

#9.1

08/02/1983

RPI 667

Solicitação de exame técnico

#4.1

07/27/1982

RPI 614

Publicação do pedido de patente

#3.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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