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

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8207783

Type

Invention Patent

Filing

07/01/1982

Publication

07/19/1983

Progress at the INPI

  1. Filing07/01/82
  2. Publication07/19/83
  3. Examination02/12/85
  4. Allowance10/13/87
  5. Grant05/31/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

See this company's full portfolio

Inventors

H. [. (pessoa física)

M. [. (pessoa física)

P. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/13/1987

RPI 886

Conhecimento de parecer técnico

#7.1

01/21/1987

RPI 848

Solicitação de exame técnico

#4.1

02/12/1985

RPI 747

Notificação de entrada na fase nacional - PCT

#1.3

07/19/1983

RPI 665

Carta-patente expirada

#21.1

Patente extinta em 01/07/97

07/01/2008

RPI 1956

Patent monitoring

Track this patent in real time.

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