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

SEM TITULO

Em AnáliseInvention Patent
Talk to an expert

Application data

Number

PI8100244

Type

Invention Patent

Filing

01/16/1981

Publication

09/21/1982
View on INPI

Progress at the INPI

  1. Filing01/16/81
  2. Publication09/21/82
  3. Examination02/16/83
  4. Allowance05/15/84
  5. Grant08/28/84
  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: 01/21/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Asten & Cia. Ltda.

SP, BR

See this company's full portfolio

Inventors

Z. G. (pessoa física)

Technical data

IPC Classification

D06F 57/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

01/21/1987

RPI 848

Concessão da patente

#16.1

08/28/1984

RPI 723

Deferimento

#9.1

05/15/1984

RPI 708

Solicitação de exame técnico

#4.1

02/16/1983

RPI 643

Publicação do pedido de patente

#3.1

09/21/1982

RPI 622

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

Related

Patent monitoring

Track this patent in real time.

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