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Official data from INPI

COMPOSICAO DE ARREBENTAMENTO AQUOSA APERFEICOADA E PROCESSO PARA SENSIBILIZAR UMA COMPOSICAO DE ARREBENTAMENTO AQUOSA

Em AnáliseInvention Patent

Application data

Number

PI7705291

Type

Invention Patent

Filing

08/11/1976

Publication

-

Progress at the INPI

  1. Filing08/11/76
  2. Publication
  3. Examination
  4. Allowance11/01/83
  5. Grant04/24/84
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 05/07/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

Inventors

W. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

05/07/1985

RPI 759

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/14/1984

RPI 695

Deferimento

#9.1

11/01/1983

RPI 680

15.0

08/31/1982

RPI 619

Exigência - art. 36 da LPI

#6.1

01/05/1982

RPI 585

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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