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Official data from INPI

APERFEIÇOAMENTO EM FERRAMENTA ELÉTRICA PORTÁTIL E PROCESSO DE CONTROLAR A VELOCIDADE DO MOTOR DE UMA FERRAMENTA ELÉTRICA PORTÁTIL

ConcedidaInvention Patent

Application data

Number

PI8000471

Type

Invention Patent

Filing

01/25/1980

Publication

-

Progress at the INPI

  1. Filing01/25/80
  2. Publication
  3. Examination03/08/83
  4. Allowance06/05/84
  5. Grant12/26/84
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Black & Decker Inc

US

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Inventors

C. G. (pessoa física)

Technical data

IPC Classification

Priority claims

IT

19697 A/79 · 01/29/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/05/1984

RPI 711

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Pedido de certificado de adição de invenção

#5.1

08/09/1983

RPI 668

Solicitação de exame técnico

#4.1

03/08/1983

RPI 646

Solicitação de exame não realizada

#4.2

01/04/1983

RPI 637

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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