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Official data from INPI

METODO DE LAMINACAO DE REDUCAO DE HASTE METALICA

Arquivada/ExtintaInvention Patent
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Application data

Number

PI7500593

Type

Invention Patent

Filing

01/29/1975

Publication

-
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Progress at the INPI

  1. Filing01/29/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Expired09/21/93

The letters patent expired on 09/21/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/21/1993. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

COPPER REFINERIES PTY LTD

Inventors

S. R. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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