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Official data from INPI

PISTAO DE METAL LEVE APERFEICOADO PARA MOTORES A COMBUSTAO DIESEL

Em AnáliseInvention Patent

Application data

Number

PI7601138

Type

Invention Patent

Filing

02/24/1975

Publication

-

Progress at the INPI

  1. Filing02/24/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant02/24/82
  6. Terminated11/17/87

The patent was granted on 02/24/1982 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: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SCHMIDT K GMBH

Inventors

D. E. (pessoa física)

S. W. (pessoa física)

S. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/17/1987

RPI 891

Concessão da patente

#16.1

02/24/1982

RPI 592

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