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Official data from INPI

CABECOTE MAGNETORREISISTIVE RESISTENTE AO DESGASTE

ConcedidaInvention Patent

Application data

Number

PI8000460

Type

Invention Patent

Filing

02/05/1979

Publication

-

Progress at the INPI

  1. Filing02/05/79
  2. Publication
  3. Examination10/05/82
  4. Allowance04/26/83
  5. Grant09/27/83
  6. Terminated02/11/92

The patent was granted on 09/27/1983 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: 09/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBM

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Inventors

B. R. (pessoa física)

D. G. (pessoa física)

G. J. (pessoa física)

M. W. (pessoa física)

P. R. (pessoa física)

S. R. (pessoa física)

S. G. (pessoa física)

Pessoa física

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1983

RPI 675

Republicação - classificação IPC

#15.11

04/26/1983

RPI 653

Deferimento

#9.1

04/26/1983

RPI 653

Solicitação de exame técnico

#4.1

10/05/1982

RPI 624

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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