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

CONVERSOR COM MODULAÇÃO DE LARGURA DE PULSOS

Arquivada/ExtintaInvention PatentPCT · FR1988000156
Talk to an expert

Application data

Number

PI8806476

Type

Invention Patent

Filing

03/25/1988

Publication

10/31/1989

PCT

FR1988000156
View on INPI

Progress at the INPI

  1. Filing03/25/88
  2. Publication10/31/89
  3. Examination11/13/90
  4. Allowance03/01/94
  5. Grant10/25/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. E. (pessoa física)

FR

See this company's full portfolio

Inventors

H. C. (pessoa física)

FR

Technical data

IPC Classification

H02M 7/5387H02P 27/08

Priority claims

FR

87/04371 · 03/30/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/31/1989

RPI 993

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: H02M 7/5387; H02P 7/628.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 25/03/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

06/14/1994

RPI 1228

Deferimento

#9.1

03/01/1994

RPI 1213

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

Related

Patent monitoring

Track this patent in real time.

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