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Official data from INPI

FILTRO PARA FLUIDOS E INDICADOR DE DIFERENÇA DE PRESSÃO NELE CONTIDO

ConcedidaInvention Patent

Application data

Number

PI8005591

Type

Invention Patent

Filing

09/03/1980

Publication

-

Progress at the INPI

  1. Filing09/03/80
  2. Publication
  3. Examination07/12/83
  4. Allowance09/04/84
  5. Grant03/26/85
  6. Terminated08/02/94

The patent was granted on 03/26/1985 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. C. (pessoa física)

US

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Inventors

F. B. (pessoa física)

L. D. (pessoa física)

Technical data

IPC Classification

Priority claims

US

072,382 · 09/04/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Deferimento

#9.1

09/04/1984

RPI 724

Republicação - classificação IPC

#15.11

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

02/21/1984

RPI 696

Solicitação de exame técnico

#4.1

07/12/1983

RPI 664

Anuidade - prazo legal encerrado

#18.2

08/02/1994

RPI 1235

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