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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE 2,3-PIRIDINA-CARBOXILATOS SUBSTITUÍDOS E NÃO SUBSTITUÍDOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102467

Type

Invention Patent

Filing

06/14/1991

Publication

01/21/1992

Progress at the INPI

  1. Filing06/14/91
  2. Publication01/21/92
  3. Examination12/21/93
  4. Allowance04/20/99
  5. Grant07/27/99
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Cyanamid Company

US

See this company's full portfolio

Inventors

A. C. (pessoa física)

US

G. C. (pessoa física)

US

W. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/538,862 · 06/15/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/06/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

07/27/1999

RPI 1490

Deferimento

#9.1

04/20/1999

RPI 1476

Exigência - art. 36 da LPI

#6.1

11/03/1998

RPI 1452

Solicitação de exame técnico

#4.1

12/21/1993

RPI 1203

Publicação do pedido de patente

#3.1

01/21/1992

RPI 1103

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