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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE ÁCIDOS (2-IMIDAZOLIN-2-IL)-PIRIDINO E QUINOLINO-CARBOXÍLICOS E RESPECTIVOS ÉSTER SAIS INTERNOS E ILETOS

PublicadaInvention Patent

Application data

Number

PI8700310

Type

Invention Patent

Filing

01/23/1987

Publication

12/08/1987

Progress at the INPI

  1. Filing01/23/87
  2. Publication12/08/87
  3. Examination05/08/90
  4. Allowance06/27/95
  5. Grant01/30/96
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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

M. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

822,098 · 01/24/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/08/1987

RPI 894

Pedido de patente depositado

#2.1

05/26/1987

RPI 866

Carta-patente expirada

#21.1

Patente extinta em 23/01/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

01/30/1996

RPI 1313

Notificação para pagamento de retribuição

#13.1

11/07/1995

RPI 1301

Deferimento

#9.1

06/27/1995

RPI 1282

Exigência - art. 36 da LPI

#6.1

02/16/1993

RPI 1159

Exigência - art. 36 da LPI

#6.1

04/28/1992

RPI 1117

Solicitação de exame técnico

#4.1

05/08/1990

RPI 1017

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