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Official data from INPI

PROCESSO PARA ADOÇAR UMA FRAÇÃO ÁCIDA DE HIDROCARBONETO CONTENDO MERCAPTANS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002096

Type

Invention Patent

Filing

05/04/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/04/90
  2. Publication08/13/91
  3. Examination12/03/91
  4. Allowance06/29/99
  5. Grant12/28/99
  6. Expired01/15/13

The letters patent expired on 01/15/2013: 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: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UOP

US

Inventors

J. B. (pessoa física)

US

L. S. (pessoa física)

US

R. F. (pessoa física)

US

T. V. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

348,620 · 05/08/1989

US

349,013 · 05/08/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/05/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

12/28/1999

RPI 1512

Deferimento

#9.1

06/29/1999

RPI 1486

Exigência - art. 36 da LPI

#6.1

02/17/1999

RPI 1467

Solicitação de exame técnico

#4.1

12/03/1991

RPI 1096

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

09/11/1990

RPI 1032

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