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Official data from INPI

PROCESSO PARA ESTABILIZAÇÃO À ÁGUA DE UM ARTIGO DE VERMICULITA, E ARTIGO DE VERMICULITA-ESTABILIZADO

Em AnáliseInvention Patent

Application data

Number

PI7802077

Type

Invention Patent

Filing

04/04/1978

Publication

-

Progress at the INPI

  1. Filing04/04/78
  2. Publication
  3. Examination
  4. Allowance01/24/84
  5. Grant07/31/84
  6. Terminated10/03/89

The patent was granted on 07/31/1984 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

C. C. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/24/1984

RPI 692

Exigência - art. 36 da LPI

#6.1

03/01/1983

RPI 645

6.2

12/15/1981

RPI 582

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C04B 41/28.

03/27/2018

RPI 2464

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