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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE PIRIDIL E QUINOLIL-IMIDAZOLINONAS

Em ExigênciaInvention Patent

Application data

Number

PI8307315

Type

Invention Patent

Filing

05/12/1983

Publication

04/17/1984

Progress at the INPI

  1. Filing05/12/83
  2. Publication04/17/84
  3. Examination03/25/86
  4. Allowance03/01/90
  5. Grant08/28/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/20/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Cyanamid Company

US

See this company's full portfolio

Inventors

P. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

381.817 · 05/25/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

06/20/1989

RPI 974

Solicitação de exame técnico

#4.1

03/25/1986

RPI 805

Retificação da notificação da fase nacional - PCT

#1.3.1

06/05/1984

RPI 711

Notificação de entrada na fase nacional - PCT

#1.3

04/17/1984

RPI 704

Carta-patente expirada

#21.1

Patente extinta em 12/05/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

06/19/1990

RPI 1023

Deferimento

#9.1

03/01/1990

RPI 1007

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