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

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8003486

Type

Invention Patent

Filing

06/04/1980

Publication

-

Progress at the INPI

  1. Filing06/04/80
  2. Publication
  3. Examination03/15/83
  4. Allowance11/16/83
  5. Grant05/29/84
  6. Expired09/12/95

The letters patent expired on 09/12/1995: 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: 05/29/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M&FC Holding Company, Inc

US

See this company's full portfolio

Inventors

S. F. (pessoa física)

W. R. (pessoa física)

W. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/20/1984

RPI 700

Republicação - classificação IPC

#15.11

03/13/1984

RPI 699

Deferimento

#9.1

11/16/1983

RPI 682

Solicitação de exame técnico

#4.1

03/15/1983

RPI 647

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

Pedido de licença compulsória

#20.1

10/15/1991

RPI 1089

Patent monitoring

Track this patent in real time.

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