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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE COMPOSTOS SUBSTITUÍDOS DE N-AROIL N'-FENIL URÉIA

ConcedidaInvention Patent

Application data

Number

PI8204510

Type

Invention Patent

Filing

07/30/1982

Publication

07/26/1983

Progress at the INPI

  1. Filing07/30/82
  2. Publication07/26/83
  3. Examination10/15/85
  4. Allowance06/14/88
  5. Grant03/28/89
  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: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

THE DOW CHEMICAL COMPANY

US

See this company's full portfolio

Inventors

R. R. (pessoa física)

US

R. S. (pessoa física)

US

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/28/1989

RPI 962

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Solicitação de exame técnico

#4.1

10/15/1985

RPI 782

Publicação do pedido de patente

#3.1

07/26/1983

RPI 666

Pedido de patente depositado

#2.1

09/14/1982

RPI 621

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 127/22; A01N 47/34; A01N 47/40; C07C 119/048; C07C 149/34; C07C 157/12; C07D 213/56; C07D 233/96; A01N 47/36; A01N 47/38; C07C 67/00; C07C 205/22; C07C 209/00; C07C 211/52; C07C 217/84; C07C 225/22; C07C 229/54; C07C 229/64; C07C 241/00; C07C 253/00; C07C 255/58; C07C 255/60; C07C 265/12; C07C 275/28; C07C 275/54; C07C 313/00; C07C 323/36; C07C 323/44; C07C 325/00; C07C 335/16; C07C 335/26; C07D 213/81; C07D 213/82; C07C 211/00; C07C 217/00; C07C 225/00; C07C 229/00; C07C 255/00; C07C 265/00; C07C 275/00; C07C 323/00; C07C 335/00; C07D 213/00; C07D 233/00.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 30/07/97

07/01/2008

RPI 1956

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