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Official data from INPI

PROCESSOS PARA A PREPARAÇÃO DE PIRIDINA-2,3-DICARBOXILATOS SUBSTITUÍDOS E DI-SUBSTITUÍDOS E PROCESSO PARA A PREPARAÇÃO DE NICOTINATOS SUBSTITUÍDOS.

Em AnáliseInvention Patent

Application data

Number

PI8605210

Type

Invention Patent

Filing

10/24/1986

Publication

07/28/1987

Progress at the INPI

  1. Filing10/24/86
  2. Publication07/28/87
  3. Examination11/28/89
  4. Allowance09/08/93
  5. Grant03/29/94
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Cyanamid Company

US

See this company's full portfolio

Inventors

R. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

791.671 · 10/28/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/28/1989

RPI 997

Publicação do pedido de patente

#3.1

07/28/1987

RPI 875

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Carta-patente expirada

#21.1

Patente extinta em 24/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

03/29/1994

RPI 1217

Deferimento

#9.1

09/08/1993

RPI 1188

Exigência - art. 36 da LPI

#6.1

03/02/1993

RPI 1161

Exigência - art. 36 da LPI

#6.1

05/05/1992

RPI 1118

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