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Official data from INPI

SENSOR DE ROTACAO DE FIBRA OTICA QUE UTILIZA LUZ IMPOLARIZADA

ConcedidaInvention Patent

Application data

Number

PI8207813

Type

Invention Patent

Filing

07/29/1981

Publication

07/19/1983

Progress at the INPI

  1. Filing07/29/81
  2. Publication07/19/83
  3. Examination04/09/85
  4. Allowance01/06/87
  5. Grant07/28/87
  6. Terminated06/26/90

The patent was granted on 07/28/1987 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNIV LELAND STANFORD JUNIOR [US]

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Inventors

P. [. (pessoa física)

S. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Deferimento

#9.1

01/06/1987

RPI 846

Exigência - art. 36 da LPI

#6.1

12/03/1985

RPI 789

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Notificação de entrada na fase nacional - PCT

#1.3

07/19/1983

RPI 665

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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