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Official data from INPI

COMPOSTO HERBICIDAS DE PIRIDINA E PROCESSO DE INIBIR O CRESCIMENTO DE PLANTAS GRAMINÁCEAS INDESEJADAS

Em AnáliseInvention Patent

Application data

Number

PI7808677

Type

Invention Patent

Filing

04/11/1978

Publication

-

Progress at the INPI

  1. Filing04/11/78
  2. Publication
  3. Examination05/25/82
  4. Allowance03/07/84
  5. Grant09/25/84
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 10/06/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

See this company's full portfolio

Inventors

C. D. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

204

10/06/1987

RPI 885

Pedido de licença voluntária

#17.1

11/05/1985

RPI 785

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

06/26/1984

RPI 714

Deferimento

#9.1

03/07/1984

RPI 698

Exigência - art. 36 da LPI

#6.1

05/24/1983

RPI 657

Solicitação de exame técnico

#4.1

05/25/1982

RPI 605

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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