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Official data from INPI

APERFEICOAMENTO EM APARELHO PARA DETECCAO DE RADONIO NA PROSPECCAO DE MINERIO DE URANIO

Em AnáliseInvention Patent

Application data

Number

PI7705465

Type

Invention Patent

Filing

08/18/1976

Publication

-

Progress at the INPI

  1. Filing08/18/76
  2. Publication
  3. Examination
  4. Allowance11/10/81
  5. Grant08/31/82
  6. Terminated12/15/87

The patent was granted on 08/31/1982 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TERRADEX CORP

Inventors

W. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

22.9

11/30/1982

RPI 632

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

03/02/1982

RPI 593

Deferimento

#9.1

11/10/1981

RPI 577

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