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Official data from INPI

APERFEICOAMENTOS EM JUNTA DE FERRAMENTA,EM FERRAMENTA PARA USO NUM FURO DE POCO E EM PROCESSO DE ENDURECIMENTO SUPERFICIAL DE UMA FERRAMENTA DE POCO

Em AnáliseInvention Patent

Application data

Number

PI7701170

Type

Invention Patent

Filing

02/27/1976

Publication

-

Progress at the INPI

  1. Filing02/27/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Terminated05/10/88

The patent was granted 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: 05/10/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

REED TOOL CO

Inventors

W. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/10/1988

RPI 916

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