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Official data from INPI

PROCESSO PARA CONTROLAR UMA UNIDADE DE CRAQUEAMENTO CATALÍTICO DE FLUIDO E SISTEMA DE REAÇÃO DE CRAQUEAMENTO CATALÍTICO DE FLUIDO.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100800

Type

Invention Patent

Filing

02/27/1991

Publication

11/05/1991

Progress at the INPI

  1. Filing02/27/91
  2. Publication11/05/91
  3. Examination12/21/93
  4. Allowance09/15/98
  5. Grant12/29/98
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. 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

C. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/486,035 · 02/27/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/02/2011

05/28/2013

RPI 2212

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

09/15/1998

RPI 1447

Exigência - art. 36 da LPI

#6.1

09/23/1997

RPI 1399

Solicitação de exame técnico

#4.1

12/21/1993

RPI 1203

Publicação do pedido de patente

#3.1

11/05/1991

RPI 1092

Pedido de patente depositado

#2.1

08/27/1991

RPI 1082

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