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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UMA DIMETILTETRALINA

Arquivada/ExtintaInvention PatentPCT · US1989002436

Application data

Number

PI8907013

Type

Invention Patent

Filing

06/05/1989

Publication

12/26/1990

PCT

US1989002436

Progress at the INPI

  1. Filing06/05/89
  2. Publication12/26/90
  3. Examination07/16/91
  4. Allowance06/08/99
  5. Grant10/19/99
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

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Inventors

D. S. (pessoa física)

US

G. W. (pessoa física)

US

I. Z. (pessoa física)

US

J. L. (pessoa física)

US

Technical data

Priority claims

US

211,00 · 06/24/1988

US

316,308 · 02/27/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 19/10/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

10/19/1999

RPI 1502

Deferimento

#9.1

06/08/1999

RPI 1483

Exigência - art. 36 da LPI

#6.1

09/23/1997

RPI 1399

Solicitação de exame técnico

#4.1

07/16/1991

RPI 1076

Notificação de entrada na fase nacional - PCT

#1.3

12/26/1990

RPI 1047

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