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Official data from INPI

MAQUINA ELETRICA COM VENTILADOR AXIAL

ConcedidaInvention Patent

Application data

Number

PI7903615

Type

Invention Patent

Filing

06/09/1978

Publication

-

Progress at the INPI

  1. Filing06/09/78
  2. Publication
  3. Examination
  4. Allowance08/17/82
  5. Grant03/29/83
  6. Expired04/04/95

The letters patent expired on 04/04/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BBC BROWN BOVERI & CIE

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Inventors

D. J. (pessoa física)

U. U. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Deferimento

#9.1

08/17/1982

RPI 617

Carta-patente expirada

#21.1

04/04/1995

RPI 1270

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