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Official data from INPI

INJETOR DE ALIMENTAÇÃO PARA INTRODUZIR UMA CARGA DE ÓLEO NUMA CORRENTE DE CATALISADOR, E PROCESSO PARA INJETAR UMA CARGA DE ÓLEO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101695

Type

Invention Patent

Filing

04/26/1991

Publication

12/10/1991

Progress at the INPI

  1. Filing04/26/91
  2. Publication12/10/91
  3. Examination03/29/94
  4. Allowance03/02/99
  5. Grant07/27/99
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

See this company's full portfolio

Inventors

S. C. (pessoa física)

GB

T. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

515,814 · 04/27/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/04/2011

06/04/2013

RPI 2213

Republicação - classificação IPC

#15.11

Alterado da Int Cl5 B01J 4/00; C10G 11/18.

11/21/2000

RPI 1559

Concessão da patente

#16.1

07/27/1999

RPI 1490

Deferimento

#9.1

03/02/1999

RPI 1469

Exigência - art. 36 da LPI

#6.1

09/29/1998

RPI 1449

Exigência - art. 36 da LPI

#6.1

04/14/1998

RPI 1425

Solicitação de exame técnico

#4.1

03/29/1994

RPI 1217

Publicação do pedido de patente

#3.1

12/10/1991

RPI 1097

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