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

APERFEIÇOAMENTOS EM FONTES PILHA-LUZ

Prazo de SigiloInvention Patent
Talk to an expert

Application data

Number

PI8803955

Type

Invention Patent

Filing

07/14/1988

Publication

03/13/1990
View on INPI

Progress at the INPI

  1. Filing07/14/88
  2. Publication03/13/90
  3. Examination10/16/90
  4. Allowance05/10/94
  5. Grant03/28/95
  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: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Amelco S.A Indústria Eletrônica

SP, BR

H. B. (pessoa física)

SP, BR

See this company's full portfolio

Inventors

H. B. (pessoa física)

BR

Technical data

IPC Classification

H02J 9/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

09/12/1989

RPI 986

Pedido de patente depositado

#2.1

01/03/1989

RPI 950

Carta-patente expirada

#21.1

Patente extinta em 14/07/2003

09/02/2008

RPI 1965

Transferência deferida

#25.1

Transferido de Hans Boris Belck.

02/06/2001

RPI 1570

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

09/27/1994

RPI 1243

Deferimento

#9.1

05/10/1994

RPI 1223

Solicitação de exame técnico

#4.1

10/16/1990

RPI 1037

Publicação do pedido de patente

#3.1

03/13/1990

RPI 1009

Related

Patent monitoring

Track this patent in real time.

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