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Official data from INPI

GRAVACAO MICROFONOGRAFICA

Em AnáliseInvention Patent

Application data

Number

PI7700591

Type

Invention Patent

Filing

01/31/1977

Publication

-

Progress at the INPI

  1. Filing01/31/77
  2. Publication
  3. Examination
  4. Allowance06/01/82
  5. Grant01/25/83
  6. Terminated12/08/87

The patent was granted on 01/25/1983 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MICROSONICS CORP

Inventors

I. R. (pessoa física)

R. S. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

09/21/1982

RPI 622

Deferimento

#9.1

06/01/1982

RPI 606

Exigência - art. 36 da LPI

#6.1

11/10/1981

RPI 577

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