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Official data from INPI

COMPOSIÇÃO E PROCESSO HELUCIDA

ConcedidaInvention Patent

Application data

Number

PI7901273

Type

Invention Patent

Filing

03/01/1979

Publication

-

Progress at the INPI

  1. Filing03/01/79
  2. Publication
  3. Examination
  4. Allowance12/29/87
  5. Grant06/28/88
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

C. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Exigência - art. 36 da LPI

#6.1

07/17/1984

RPI 717

Conhecimento de parecer técnico

#7.1

11/08/1983

RPI 681

6.2

03/16/1982

RPI 595

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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