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Official data from INPI

PROCESSO PARA PRODUZIR UM FILME TUBULAR POLÍMERO

Em AnáliseInvention Patent

Application data

Number

PI7801706

Type

Invention Patent

Filing

03/20/1978

Publication

-

Progress at the INPI

  1. Filing03/20/78
  2. Publication
  3. Examination
  4. Allowance11/30/82
  5. Grant06/28/83
  6. Terminated10/03/89

The patent was granted on 06/28/1983 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: 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. M. (pessoa física)

Technical data

IPC Classification

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

06/28/1983

RPI 662

Notificação para pagamento de retribuição

#13.1

05/10/1983

RPI 655

Deferimento

#9.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

05/11/1982

RPI 603

Exigência - art. 36 da LPI

#6.1

12/08/1981

RPI 581

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B29D 23/04.

03/27/2018

RPI 2464

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