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Official data from INPI

Conjunto de múltiplos laços prefabricado

Em AnáliseInvention Patent

Application data

Number

PI8706587

Type

Invention Patent

Filing

12/07/1987

Publication

07/26/1988

Progress at the INPI

  1. Filing12/07/87
  2. Publication07/26/88
  3. Examination09/27/88
  4. Allowance12/31/96
  5. Grant08/26/97
  6. Expired08/26/08

The letters patent expired on 08/26/2008: 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: 09/27/1988. 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

B. T. (pessoa física)

US

D. P. (pessoa física)

US

P. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

941,025 · 12/12/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/27/1988

RPI 936

Publicação do pedido de patente

#3.1

07/26/1988

RPI 927

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Carta-patente expirada

#21.1

Patente extinta em 07/12/2007

08/26/2008

RPI 1964

Concessão da patente

#16.1

08/26/1997

RPI 1395

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

12/31/1996

RPI 1361

Conhecimento de parecer técnico

#7.1

04/05/1994

RPI 1218

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