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Official data from INPI

PROCESSO PARA PRODUÇÃO DE ÁCIDO ACRÍLICO.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005603

Type

Invention Patent

Filing

11/06/1990

Publication

09/17/1991

Progress at the INPI

  1. Filing11/06/90
  2. Publication09/17/91
  3. Examination03/24/92
  4. Allowance11/10/98
  5. Grant07/13/99
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nippon Shokubai Kagaku Kogyo Co., Ltd

JP

See this company's full portfolio

Inventors

H. H. (pessoa física)

JP

S. U. (pessoa física)

JP

T. K. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

1-287518 · 11/06/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 06/11/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

07/13/1999

RPI 1488

Deferimento

#9.1

11/10/1998

RPI 1453

Exigência - art. 36 da LPI

#6.1

05/12/1998

RPI 1429

Solicitação de exame técnico

#4.1

03/24/1992

RPI 1112

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/23/1991

RPI 1064

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