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

SEM TITULO

ConcedidaInvention Patent
Talk to an expert

Application data

Number

PI8100555

Type

Invention Patent

Filing

01/30/1981

Publication

09/28/1982
View on INPI

Progress at the INPI

  1. Filing01/30/81
  2. Publication09/28/82
  3. Examination12/14/82
  4. Allowance02/12/85
  5. Grant07/30/85
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Explo-Brasil S.A

SP, BR

See this company's full portfolio

Inventors

B. R. (pessoa física)

Technical data

IPC Classification

D06L 1/14D06L 4/24

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/28/1985

RPI 762

Deferimento

#9.1

02/12/1985

RPI 747

Exigência - art. 36 da LPI

#6.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Solicitação de exame técnico

#4.1

12/14/1982

RPI 634

Publicação do pedido de patente

#3.1

09/28/1982

RPI 623

Republicação - classificação IPC

#15.11

As classificações anteriores eram: D06L 1/14; D06L 3/08

07/25/2017

RPI 2429

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

20.4

08/04/1992

RPI 1131

20.7

08/04/1992

RPI 1131

Related

Patent monitoring

Track this patent in real time.

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