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Official data from INPI

FORMULACAO LIQUIDA PARA O TRATAMENTO DE PANO,E PROCESSO PARA SUA PREPARACAO

ConcedidaInvention Patent

Application data

Number

PI7704876

Type

Invention Patent

Filing

07/26/1976

Publication

-

Progress at the INPI

  1. Filing07/26/76
  2. Publication
  3. Examination
  4. Allowance07/19/83
  5. Grant01/31/84
  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: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNILEVER NV

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Inventors

N. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

10/20/1981

RPI 574

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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