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Official data from INPI

"SISTEMA DE CONTROLE ELÉTRICO"

ConcedidaInvention Patent
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Application data

Number

PI8005901

Type

Invention Patent

Filing

09/15/1980

Publication

-
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Progress at the INPI

  1. Filing09/15/80
  2. Publication
  3. Examination07/12/83
  4. Allowance11/29/94
  5. Grant06/26/84
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WESTINGHOUSE ELECTRIC CORPORATION,

US

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Inventors

M. A. (pessoa física)

M. S. (pessoa física)

T. G. (pessoa física)

Technical data

IPC Classification

H01H 71/74

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/24/1984

RPI 705

Deferimento

#9.1

01/03/1984

RPI 689

Solicitação de exame técnico

#4.1

07/12/1983

RPI 664

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

Deferimento

#9.1

11/29/1994

RPI 1252

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