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Official data from INPI

RECIPIENTE PARA DOIS FLUIDOS A SEREM MISTURADOS

Em AnáliseInvention Patent

Application data

Number

PI7901820

Type

Invention Patent

Filing

03/27/1978

Publication

-

Progress at the INPI

  1. Filing03/27/78
  2. Publication
  3. Examination11/17/81
  4. Allowance08/24/82
  5. Grant03/29/83
  6. Terminated05/17/88

The patent was granted on 03/29/1983 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

MINNESOTA MINING & MFG

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Inventors

A. K. (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

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

Solicitação de exame técnico

#4.1

11/17/1981

RPI 578

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