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Official data from INPI

PROCESSO, E INSTALAÇÃO, PARA FABRICAR ÁCIDO TEREFTÁLICO

Em AnáliseInvention Patent

Application data

Number

PI8506237

Type

Invention Patent

Filing

12/12/1985

Publication

08/26/1986

Progress at the INPI

  1. Filing12/12/85
  2. Publication08/26/86
  3. Examination09/27/88
  4. Allowance11/03/92
  5. Grant04/27/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

See this company's full portfolio

Inventors

H. L. (pessoa física)

US

K. A. (pessoa física)

US

L. S. (pessoa física)

US

M. Z. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

681.227 · 12/13/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/27/1988

RPI 936

Publicação do pedido de patente

#3.1

08/26/1986

RPI 827

Pedido de patente depositado

#2.1

02/25/1986

RPI 801

Carta-patente expirada

#21.1

Patente extinta em 12/12/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

04/27/1993

RPI 1169

Deferimento

#9.1

11/03/1992

RPI 1144

Exigência - art. 36 da LPI

#6.1

01/28/1992

RPI 1104

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