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Official data from INPI

TAMPA DE LIBERACAO

ConcedidaInvention Patent

Application data

Number

PI7906497

Type

Invention Patent

Filing

10/10/1978

Publication

-

Progress at the INPI

  1. Filing10/10/78
  2. Publication
  3. Examination
  4. Allowance11/23/82
  5. Grant06/28/83
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 06/28/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BROKEN HILL PTY CO LTD

Inventors

D. A. (pessoa física)

D. M. (pessoa física)

R. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1983

RPI 662

Notificação para pagamento de retribuição

#13.1

04/05/1983

RPI 650

Deferimento

#9.1

11/23/1982

RPI 631

Exigência - art. 36 da LPI

#6.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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