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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE UM ALDEÍDO INSATURADO OU DE UM ÁCIDO INSATURADO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101325

Type

Invention Patent

Filing

04/02/1991

Publication

11/26/1991

Progress at the INPI

  1. Filing04/02/91
  2. Publication11/26/91
  3. Examination11/07/95
  4. Allowance02/17/99
  5. Grant07/27/99
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nippon Shokubai Kagaku Kogyo Co., Ltd.

JP

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Inventors

H. H. (pessoa física)

JP

S. U. (pessoa física)

JP

T. K. (pessoa física)

JP

Y. A. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

87,355/90 · 04/03/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/04/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

07/27/1999

RPI 1490

Deferimento

#9.1

02/17/1999

RPI 1467

Solicitação de exame técnico

#4.1

11/07/1995

RPI 1301

Publicação do pedido de patente

#3.1

11/26/1991

RPI 1095

Pedido de patente depositado

#2.1

09/17/1991

RPI 1085

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