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

SISTEMA DE COMPUTACAO DE SINAL ANALOGICO

Em AnáliseInvention Patent

Application data

Number

PI7705853

Type

Invention Patent

Filing

09/07/1976

Publication

-

Progress at the INPI

  1. Filing09/07/76
  2. Publication
  3. Examination
  4. Allowance09/20/83
  5. Grant04/24/84
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 02/09/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

YOKOGAWA ELECTRIC WORKS LTD

See this company's full portfolio

Inventors

K. K. (pessoa física)

S. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

02/09/1988

RPI 903

Concessão da patente

#16.1

04/24/1984

RPI 705

14.4

01/10/1984

RPI 690

Notificação para pagamento de retribuição

#13.1

01/03/1984

RPI 689

Deferimento

#9.1

09/20/1983

RPI 674

Exigência - art. 36 da LPI

#6.1

03/29/1983

RPI 649

15.0

06/15/1982

RPI 608

Exigência - art. 36 da LPI

#6.1

06/08/1982

RPI 607

6.2

10/20/1981

RPI 574

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

Patent monitoring

Track this patent in real time.

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