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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8004413

Type

Invention Patent

Filing

07/16/1980

Publication

-

Progress at the INPI

  1. Filing07/16/80
  2. Publication
  3. Examination11/30/82
  4. Allowance05/07/85
  5. Grant11/26/85
  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.

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

ICI Australia Limited

AU

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Inventors

F. G. (pessoa física)

S. A. (pessoa física)

W. K. (pessoa física)

Technical data

IPC Classification

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

08/27/1985

RPI 775

Deferimento

#9.1

05/07/1985

RPI 759

Exigência - art. 36 da LPI

#6.1

08/21/1984

RPI 722

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

11/30/1982

RPI 632

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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