(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA O PREPARO CONTÍNUO DE ANILINA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9103981

Type

Invention Patent

Filing

09/17/1991

Publication

05/26/1992

Progress at the INPI

  1. Filing09/17/91
  2. Publication05/26/92
  3. Examination02/09/93
  4. Allowance11/17/98
  5. Grant06/01/99
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mitsui Chemicals, Inc.

JP

Mitsui Toatsu Chemicals, Incorporated

JP

See this company's full portfolio

Inventors

A. T. (pessoa física)

JP

K. W. (pessoa física)

JP

T. K. (pessoa física)

JP

T. N. (pessoa física)

JP

Y. K. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

246281/1990 · 09/18/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinte em 17/09/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

06/01/1999

RPI 1482

Transferência deferida

#25.1

Transferência por incorporação de: Mitsui Toatsu Chemicals, Inc.

03/09/1999

RPI 1470

Deferimento

#9.1

11/17/1998

RPI 1454

Solicitação de exame técnico

#4.1

02/09/1993

RPI 1158

Publicação do pedido de patente

#3.1

05/26/1992

RPI 1121

Pedido de patente depositado

#2.1

10/22/1991

RPI 1090

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.