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Official data from INPI

REDE FORMADA POR CORRENTES DE ELOS

Em AnáliseInvention Patent

Application data

Number

PI7708401

Type

Invention Patent

Filing

12/17/1976

Publication

-

Progress at the INPI

  1. Filing12/17/76
  2. Publication
  3. Examination
  4. Allowance04/27/82
  5. Grant11/16/82
  6. Terminated12/15/87

The patent was granted on 11/16/1982 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RUD KETTEN RIEGER & DIETZ

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Inventors

W. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

11/16/1982

RPI 630

Notificação para pagamento de retribuição

#13.1

08/31/1982

RPI 619

Deferimento

#9.1

04/27/1982

RPI 601

15.0

11/03/1981

RPI 576

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