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Official data from INPI

ligação entre uma aparelhagem sob envoltório metálico isolado por um gás sob pressão e um transformador isolado por um líquido dielétrico.

Em AnáliseInvention Patent

Application data

Number

PI7700224

Type

Invention Patent

Filing

01/13/1977

Publication

-

Progress at the INPI

  1. Filing01/13/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Terminated12/08/87

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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alsthom-Atlantique

FR

Delle-Alsthom S/A.

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Inventors

G. M. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

FR

76 01 154 · 01/16/1976

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Cessão de direito de exploração

#22.1

12/04/1984

RPI 737

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