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Official data from INPI

EXTRUSOR DE DUPLA ROSCA SEM FIM

Em AnáliseInvention Patent

Application data

Number

PI7902018

Type

Invention Patent

Filing

04/03/1978

Publication

-

Progress at the INPI

  1. Filing04/03/78
  2. Publication
  3. Examination12/15/81
  4. Allowance03/22/83
  5. Grant10/25/83
  6. Terminated10/03/89

The patent was granted on 10/25/1983 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. A. (pessoa física)

Inventors

A. F. (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

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

Exigência - art. 36 da LPI

#6.1

06/29/1982

RPI 610

Solicitação de exame técnico

#4.1

12/15/1981

RPI 582

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