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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE UM PO DE LAVAGEM DE PANO DE ESPUMAMENTO CONTROLADO.

ConcedidaInvention Patent

Application data

Number

PI8104874

Type

Invention Patent

Filing

07/28/1981

Publication

04/13/1982

Progress at the INPI

  1. Filing07/28/81
  2. Publication04/13/82
  3. Examination03/20/84
  4. Allowance08/20/85
  5. Grant04/29/86
  6. Expired11/19/96

The letters patent expired on 11/19/1996: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V

NL

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Inventors

C. M. (pessoa física)

G. P. (pessoa física)

M. J. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8024742 · 07/29/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

03/20/1984

RPI 700

Publicação do pedido de patente

#3.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

11/19/1996

RPI 1355

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