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Official data from INPI

PROCESSO PARA PREPARAR UMA COMPOSIÇÃO DE ALVEJAMENTO E LIMPEZA.

ConcedidaInvention Patent

Application data

Number

PI7906154

Type

Invention Patent

Filing

09/26/1979

Publication

-

Progress at the INPI

  1. Filing09/26/79
  2. Publication
  3. Examination07/13/82
  4. Allowance07/14/87
  5. Grant12/29/87
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V

NL

See this company's full portfolio

Inventors

L. A. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

38.347/78 · 09/27/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Republicação - classificação IPC

#15.11

05/02/1984

RPI 706

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

Conhecimento de parecer técnico

#7.1

10/18/1983

RPI 678

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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