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Official data from INPI

PROCESSO PARA A PREPARAÇÃO, DE COMPOSTOS 2,3-DICARBOXILATOS DE PIRIDINA, 5-SUBSTITUÍDOS, 6-SUBSTITUÍDOS E 5,6-DISSUBSTITUÍDOS, E, DE COMPOSTOS 5,7-DIIDRO-2-(2-IMIDAZOLIN-2-IL) TIENO E FURO (3,4-B)-PIRIDINA

Em AnáliseInvention Patent

Application data

Number

PI8502364

Type

Invention Patent

Filing

05/20/1985

Publication

01/21/1986

Progress at the INPI

  1. Filing05/20/85
  2. Publication01/21/86
  3. Examination12/08/87
  4. Allowance02/19/91
  5. Grant09/24/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Cyanamid Company

US

See this company's full portfolio

Inventors

J. J. (pessoa física)

US

Technical data

Priority claims

US

612.531 · 05/21/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/08/1987

RPI 894

Publicação do pedido de patente

#3.1

01/21/1986

RPI 796

Pedido de patente depositado

#2.1

07/23/1985

RPI 770

Carta-patente expirada

#21.1

Patente extinta em 20/05/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

06/04/1991

RPI 1070

Deferimento

#9.1

02/19/1991

RPI 1055

Exigência - art. 36 da LPI

#6.1

08/21/1990

RPI 1029

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