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Official data from INPI

DISPOSITIVO PARA A ELIMINACAO DE IMPUREZAS DE UM CONDUTO DE TRANSPORTE DE FIBRAS EM UM CONJUNTO PREPARATORIO DE FIACAO

Em AnáliseInvention Patent

Application data

Number

PI7803697

Type

Invention Patent

Filing

06/09/1977

Publication

-

Progress at the INPI

  1. Filing06/09/77
  2. Publication
  3. Examination
  4. Allowance08/23/83
  5. Grant07/30/85
  6. Terminated06/14/88

The patent was granted on 07/30/1985 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RIETER AG MASCHF

See this company's full portfolio

Inventors

L. W. (pessoa física)

W. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

07/30/1985

RPI 771

15.2

03/12/1985

RPI 751

Notificação para pagamento de retribuição

#13.1

12/13/1983

RPI 686

Deferimento

#9.1

08/23/1983

RPI 670

15.0

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

6.2

12/01/1981

RPI 580

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