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Official data from INPI

PROCESSO APERFEICOADO PARA PREPARAR TRIARIL-FOSFINAS

Em AnáliseInvention Patent

Application data

Number

PI7605612

Type

Invention Patent

Filing

08/27/1975

Publication

-

Progress at the INPI

  1. Filing08/27/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Terminated05/21/85

The patent was granted 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: 05/21/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M & T CHEMICALS INC

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Inventors

C. V. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/21/1985

RPI 761

Cessão de direito de exploração

#22.1

11/13/1984

RPI 734

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