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Official data from INPI

PROCESSO DE PRODUÇÃO DE COMPOSTO DE DOIS METAIS POR EXTRUSÀO DE LINGOTE

Concessão AnuladaInvention Patent

Application data

Number

PI8003307

Type

Invention Patent

Filing

05/27/1980

Publication

-

Progress at the INPI

  1. Filing05/27/80
  2. Publication
  3. Examination
  4. Allowance09/06/83
  5. Grant04/24/84
  6. Expired06/13/95

The letters patent expired on 06/13/1995: 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: 07/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Teledyne Industries, Inc

US

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Inventors

M. W. (pessoa física)

Technical data

IPC Classification

Priority claims

US

42.893 · 05/29/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.4

07/24/1984

RPI 718

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

12/27/1983

RPI 688

Republicação - classificação IPC

#15.11

09/13/1983

RPI 673

Deferimento

#9.1

09/06/1983

RPI 672

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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