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Official data from INPI

PROCESSO DE REFORMA PARA PRODUZIR HIDROCARBONETOS AROMÁTICOS

Em ExigênciaInvention Patent

Application data

Number

PI8305312

Type

Invention Patent

Filing

09/27/1983

Publication

05/08/1984

Progress at the INPI

  1. Filing09/27/83
  2. Publication05/08/84
  3. Examination06/03/86
  4. Allowance05/29/90
  5. Grant12/26/90
  6. Terminated04/23/96

The patent was granted on 12/26/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Egineering Company

US

Exxon Research And Engineering Company.

US

See this company's full portfolio

Inventors

A. C. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

US

426.211 · 09/28/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

09/12/1989

RPI 986

Exigência - art. 36 da LPI

#6.1

04/11/1989

RPI 964

Solicitação de exame técnico

#4.1

06/03/1986

RPI 815

Republicação - classificação IPC

#15.11

08/07/1984

RPI 720

Publicação do pedido de patente

#3.1

05/08/1984

RPI 707

Pedido de patente depositado

#2.1

11/29/1983

RPI 684

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01J 29/28; C10G 35/095.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

04/23/1996

RPI 1325

Republicação - classificação IPC

#15.11

03/05/1991

RPI 1057

Concessão da patente

#16.1

12/26/1990

RPI 1047

9.1.3

08/07/1990

RPI 1027

Deferimento

#9.1

05/29/1990

RPI 1020

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