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Official data from INPI

COMPOSICOES HERBICIDAS DE DERIVADOS DE ETER DIFENILICO E PROCESSO DE PREPARACAO DESTES

ArquivadaInvention Patent

Application data

Number

PI7907251

Type

Invention Patent

Filing

11/08/1978

Publication

-

Progress at the INPI

  1. Filing11/08/78
  2. Publication
  3. Examination
  4. Allowance09/25/84
  5. Grant05/28/85
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 07/23/1985. We update with every new RPI gazette, published weekly.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

11.8

07/23/1985

RPI 770

Arquivamento - Art. 38 §2° da LPI

#11.4

06/11/1985

RPI 764

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

01/03/1984

RPI 689

6.2

04/06/1982

RPI 598

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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