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Official data from INPI

ROTOR APERFEICOADO PARA UM SEPARADOR ROTATIVO DE FLUXO AXIAL

Em AnáliseInvention Patent

Application data

Number

PI7901762

Type

Invention Patent

Filing

03/24/1978

Publication

-

Progress at the INPI

  1. Filing03/24/78
  2. Publication
  3. Examination10/27/81
  4. Allowance01/25/83
  5. Grant08/30/83
  6. Terminated05/17/88

The patent was granted on 08/30/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DEERE & CO

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Inventors

W. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

05/31/1983

RPI 658

Deferimento

#9.1

01/25/1983

RPI 640

Exigência - art. 36 da LPI

#6.1

05/18/1982

RPI 604

Solicitação de exame técnico

#4.1

10/27/1981

RPI 575

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