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Official data from INPI

PROCESSO APERFEIÇOADO PARA PREPARAR ÁLCOOIS

Arquivada/ExtintaInvention PatentPCT · US1988000286

Application data

Number

PI8807347

Type

Invention Patent

Filing

02/01/1988

Publication

03/13/1990

PCT

US1988000286

Progress at the INPI

  1. Filing02/01/88
  2. Publication03/13/90
  3. Examination06/05/90
  4. Allowance06/06/95
  5. Grant12/26/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Chemical Patents Inc

US

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Inventors

A. C. (pessoa física)

CA

J. B. (pessoa física)

US

W. D. (pessoa física)

US

Technical data

Priority claims

US

009.795 · 02/02/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 01/02/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

12/26/1995

RPI 1308

Notificação para pagamento de retribuição

#13.1

10/17/1995

RPI 1298

Deferimento

#9.1

06/06/1995

RPI 1279

Exigência - art. 36 da LPI

#6.1

09/27/1994

RPI 1243

Solicitação de exame técnico

#4.1

06/05/1990

RPI 1021

Notificação de entrada na fase nacional - PCT

#1.3

03/13/1990

RPI 1009

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