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Official data from INPI

BARRA DETERGENTE CONTENDO SULFATO DE ÁLCOOL PRIMÁRIO

Em AnáliseInvention Patent

Application data

Number

PI8503109

Type

Invention Patent

Filing

06/28/1985

Publication

03/18/1986

Progress at the INPI

  1. Filing06/28/85
  2. Publication03/18/86
  3. Examination08/05/86
  4. Allowance06/25/91
  5. Grant12/31/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 08/05/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V.

NL

See this company's full portfolio

Inventors

P. P. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8416878 · 07/03/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

03/18/1986

RPI 804

Pedido de patente depositado

#2.1

09/10/1985

RPI 777

Carta-patente expirada

#21.1

Patente extinta em 28/06/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

12/31/1991

RPI 1100

Notificação para pagamento de retribuição

#13.1

10/22/1991

RPI 1090

Deferimento

#9.1

06/25/1991

RPI 1073

Exigência - art. 36 da LPI

#6.1

10/23/1990

RPI 1038

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