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

CONTROLER DIGITAL

DeferidaInvention Patent

Application data

Number

PI8400810

Type

Invention Patent

Filing

02/22/1984

Publication

10/02/1984

Progress at the INPI

  1. Filing02/22/84
  2. Publication10/02/84
  3. Examination08/12/86
  4. Allowance11/14/89
  5. Grant05/29/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hitachi, Ltd.

JP

See this company's full portfolio

Inventors

H. Y. (pessoa física)

JP

T. O. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

28541/83 · 02/24/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

10/02/1984

RPI 728

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: G06F 15/20; G05B 19/18.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 22/02/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

Related

From the same holder

Same category

Patent monitoring

Track this patent in real time.

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