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Official data from INPI

COMPOSIÇÃO DE AMACIAMENTO DE PANO E PROCESSO PARA PREPARAR COMPOSIÇÕES AQUOSAS.

ConcedidaInvention Patent

Application data

Number

PI7907102

Type

Invention Patent

Filing

10/31/1979

Publication

-

Progress at the INPI

  1. Filing10/31/79
  2. Publication
  3. Examination
  4. Allowance10/13/87
  5. Grant05/31/88
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V

NL

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Inventors

W. M. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

43158/78 · 11/03/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/13/1987

RPI 886

Exigência - art. 36 da LPI

#6.1

05/05/1987

RPI 863

Republicação - classificação IPC

#15.11

02/14/1984

RPI 695

Conhecimento de parecer técnico

#7.1

11/08/1983

RPI 681

6.2

02/01/1983

RPI 641

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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