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

UNIDADE ELÉTRICA, SUPRESSOR DE SURTOS E SEUS RESPECTIVOS MÉTODOS DE CONSTRUÇÃO

Em ExigênciaInvention Patent

Application data

Number

PI8504773

Type

Invention Patent

Filing

09/27/1985

Publication

07/22/1986

Progress at the INPI

  1. Filing09/27/85
  2. Publication07/22/86
  3. Examination10/29/86
  4. Allowance05/28/91
  5. Grant11/26/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. I. (pessoa física)

US

See this company's full portfolio

Inventors

D. R. (pessoa física)

US

Technical data

Priority claims

US

681.800 · 12/14/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

14.4

10/18/1988

RPI 939

Solicitação de exame técnico

#4.1

10/29/1986

RPI 836

Publicação do pedido de patente

#3.1

07/22/1986

RPI 822

Pedido de patente depositado

#2.1

12/10/1985

RPI 790

Carta-patente expirada

#21.1

Patente extinta em 27/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

11/26/1991

RPI 1095

Notificação para pagamento de retribuição

#13.1

09/10/1991

RPI 1084

Deferimento

#9.1

05/28/1991

RPI 1069

Patent monitoring

Track this patent in real time.

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