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Official data from INPI

MATERIAL REFORÇADO EM FOLHA PARA SINALIZAÇÃO DE PAVIMENTOS

Em AnáliseInvention Patent

Application data

Number

PI8406686

Type

Invention Patent

Filing

12/21/1984

Publication

07/01/1986

Progress at the INPI

  1. Filing12/21/84
  2. Publication07/01/86
  3. Examination08/16/88
  4. Allowance01/29/91
  5. Grant08/27/91
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 08/16/1988. 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

S. J. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/16/1988

RPI 930

Publicação do pedido de patente

#3.1

07/01/1986

RPI 819

Pedido de patente depositado

#2.1

03/12/1985

RPI 751

Carta-patente expirada

#21.1

Patente extinta em 21/12/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

08/27/1991

RPI 1082

Notificação para pagamento de retribuição

#13.1

05/14/1991

RPI 1067

Deferimento

#9.1

01/29/1991

RPI 1052

Exigência - art. 36 da LPI

#6.1

08/14/1990

RPI 1028

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