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Official data from INPI

PROCESSO PARA A TRANSVINILAÇÃO DE UM DERIVADO VINÍLICO DE UM ÁCIDO DE BRONSTED COM UM ÁCIDO DE BRONSTED DIFERENTE

Prazo de SigiloInvention Patent

Application data

Number

PI8903207

Type

Invention Patent

Filing

06/29/1989

Publication

02/13/1990

Progress at the INPI

  1. Filing06/29/89
  2. Publication02/13/90
  3. Examination04/16/91
  4. Allowance12/10/96
  5. Grant08/26/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

R. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

213.697 · 06/30/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/10/1989

RPI 990

Carta-patente expirada

#21.1

Patente extinta em 29/06/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

08/26/1997

RPI 1395

Deferimento

#9.1

12/10/1996

RPI 1358

Exigência - art. 36 da LPI

#6.1

03/26/1996

RPI 1321

4.1.2

05/21/1991

RPI 1068

Solicitação de exame técnico

#4.1

04/16/1991

RPI 1063

Publicação do pedido de patente

#3.1

02/13/1990

RPI 1006

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