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Official data from INPI

PROCESSO PARA PREPARAR BENZENO 3,4-DIFLUORO SUBSTITUÍDO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906227

Type

Invention Patent

Filing

11/28/1989

Publication

06/26/1990

Progress at the INPI

  1. Filing11/28/89
  2. Publication06/26/90
  3. Examination08/11/92
  4. Allowance07/28/98
  5. Grant12/29/98
  6. Expired01/02/13

The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dow Agrosciences LLC

US

The Dow Chemical Company

US

See this company's full portfolio

Inventors

C. W. (pessoa física)

US

J. L. (pessoa física)

US

J. G. (pessoa física)

US

R. P. (pessoa física)

US

Technical data

Priority claims

US

276,711 · 11/28/1988

US

276,712 · 11/28/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/11/2009

01/02/2013

RPI 2191

Transferência deferida

#25.1

Transferido de: The Dow Chemical Company

10/24/2000

RPI 1555

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

07/28/1998

RPI 1440

Exigência - art. 36 da LPI

#6.1

08/06/1996

RPI 1340

Solicitação de exame técnico

#4.1

08/11/1992

RPI 1132

Publicação do pedido de patente

#3.1

06/26/1990

RPI 1024

Pedido de patente depositado

#2.1

03/27/1990

RPI 1011

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