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Official data from INPI

APERFEICOAMENTO EM CABECA MICROMETRICA PARA INSTRUMENTO DE MEDIDA DE INTERIORES

ConcedidaInvention Patent

Application data

Number

PI7703896

Type

Invention Patent

Filing

06/23/1976

Publication

-

Progress at the INPI

  1. Filing06/23/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/20/82
  6. Expired07/06/93

The letters patent expired on 07/06/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/20/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TESA SA

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Inventors

L. G. (pessoa física)

T. R. (pessoa física)

V. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/20/1982

RPI 613

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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