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Official data from INPI

PROCESSO PARA A OBTENCAO DE SULFONAMIDAS HERBICIDAS

Em AnáliseInvention Patent

Application data

Number

PI7702159

Type

Invention Patent

Filing

04/07/1976

Publication

-

Progress at the INPI

  1. Filing04/07/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant05/31/83
  6. Terminated12/08/87

The patent was granted on 05/31/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

L. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

04/05/1983

RPI 650

110

01/11/1983

RPI 638

Recurso

#12.1

11/17/1981

RPI 578

15.0

10/27/1981

RPI 575

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