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Official data from INPI

PROCESSO CONTÍNUO EM VASO ÚNICO PARA PRODUÇÃO DE DINITROTOLUENO

Arquivada/ExtintaInvention PatentPCT · US1992001065

Application data

Number

PI9205728

Type

Invention Patent

Filing

02/14/1992

Publication

12/27/1994

PCT

US1992001065

Progress at the INPI

  1. Filing02/14/92
  2. Publication12/27/94
  3. Abandoned02/21/95
  4. Allowance
  5. Grant
  6. In force

The application was abandoned for failure to pay the annuities (art. 86 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/10/2000. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. C. (pessoa física)

US

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Inventors

A. Q. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

666.330 · 03/08/1991

Abstract

Está descrito um processo aperfeiçoado contínuo em vaso único para preparação de dinitrotolueno reagindo tolueno com ácido nítrico concentrado.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento por falta de pagamento

#8.6

Referente à 6ª, 7ª, 8ª anuidades.

10/10/2000

RPI 1553

8.1

Comprovar o recolhimento referente à 6ª e 7ª anuidades.

09/21/1999

RPI 1498

Deferimento

#9.1

03/23/1999

RPI 1472

Solicitação de exame técnico

#4.1

02/21/1995

RPI 1264

Notificação de entrada na fase nacional - PCT

#1.3

12/27/1994

RPI 1256

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