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

MATERIAL EM FOLHA E PROCESSO DE MODIFICAR MATERIAL EM FOLHA.

Em AnáliseInvention Patent

Application data

Number

PI8604749

Type

Invention Patent

Filing

10/01/1986

Publication

06/30/1987

Progress at the INPI

  1. Filing10/01/86
  2. Publication06/30/87
  3. Examination10/17/89
  4. Allowance05/29/90
  5. Grant11/27/90
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 10/17/1989. 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

B. H. (pessoa física)

US

G. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

782.964 · 10/02/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/17/1989

RPI 991

Publicação do pedido de patente

#3.1

06/30/1987

RPI 871

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Carta-patente expirada

#21.1

Patente extinta em 01/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

09/04/1990

RPI 1031

Deferimento

#9.1

05/29/1990

RPI 1020

Patent monitoring

Track this patent in real time.

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