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Official data from INPI

MODIFICACOES DE CORANTES MISTOS ESTAVEIS EM CONDICOES DE TINGIMENTO,PROCESSO PARA SUA PREPARACAO,E SUA APLICACAO

Em AnáliseInvention Patent

Application data

Number

PI7706341

Type

Invention Patent

Filing

09/23/1976

Publication

-

Progress at the INPI

  1. Filing09/23/76
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant01/31/84
  6. Terminated12/15/87

The patent was granted on 01/31/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOECHST AG

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Inventors

D. W. (pessoa física)

K. H. (pessoa física)

S. K. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

16.3

06/19/1984

RPI 713

16.3

04/17/1984

RPI 704

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Republicação - classificação IPC

#15.11

07/26/1983

RPI 666

Deferimento

#9.1

07/12/1983

RPI 664

Exigência - art. 36 da LPI

#6.1

11/30/1982

RPI 632

6.2

12/29/1981

RPI 584

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