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Official data from INPI

PROCESSO PARA PRODUZIR ÉTERES DE ALILA

Em AnáliseInvention Patent

Application data

Number

PI8603812

Type

Invention Patent

Filing

08/11/1986

Publication

03/17/1987

Progress at the INPI

  1. Filing08/11/86
  2. Publication03/17/87
  3. Examination06/09/87
  4. Allowance06/20/95
  5. Grant12/26/95
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 06/09/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allied Colloids Limited

GB

Ciba Specialty Chemicals Water Treatments Limited

GB

See this company's full portfolio

Inventors

D. F. (pessoa física)

GB

M. H. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8520218 · 08/12/1985

GB

8603656 · 02/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/09/1987

RPI 868

Publicação do pedido de patente

#3.1

03/17/1987

RPI 856

Pedido de patente depositado

#2.1

01/06/1987

RPI 846

Carta-patente expirada

#21.1

Patente extinta em 11/08/2001

07/22/2008

RPI 1959

Alteração de nome deferida

#25.4

Alterado de: Allied Colloids Limited

09/18/2001

RPI 1602

Concessão da patente

#16.1

12/26/1995

RPI 1308

Notificação para pagamento de retribuição

#13.1

10/31/1995

RPI 1300

Deferimento

#9.1

06/20/1995

RPI 1281

Exigência - art. 36 da LPI

#6.1

09/14/1993

RPI 1189

Exigência - art. 36 da LPI

#6.1

02/09/1993

RPI 1158

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