(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

GERACAO DIGITAL DE FORMAS DE ONDAS MODULADAS DE LARGURAS DE PULSO TRIFASICAS PARA CONTROLE DE VELOCIDADE VARIAVEL DE MOTOR DE INDUCAO

ConcedidaInvention Patent
Talk to an expert

Application data

Number

PI8302459

Type

Invention Patent

Filing

05/07/1982

Publication

01/17/1984
View on INPI

Progress at the INPI

  1. Filing05/07/82
  2. Publication01/17/84
  3. Examination05/22/84
  4. Allowance03/26/85
  5. Grant08/27/85
  6. Terminated04/25/95

The patent was granted on 08/27/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/27/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BABCOCK & WILCOX CO [US]

See this company's full portfolio

Inventors

R. J. (pessoa física)

S. B. (pessoa física)

Technical data

IPC Classification

H02P 5/34H02P 7/42

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

07/09/1985

RPI 768

Deferimento

#9.1

03/26/1985

RPI 753

Solicitação de exame técnico

#4.1

05/22/1984

RPI 709

Publicação do pedido de patente

#3.1

01/17/1984

RPI 691

Pedido de patente depositado

#2.1

06/28/1983

RPI 662

Anuidade - prazo legal encerrado

#18.2

04/25/1995

RPI 1273

Pedido de licença compulsória

#20.1

02/04/1992

RPI 1105

Pedido de licença compulsória

#20.1

01/28/1992

RPI 1104

Related

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.