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Official data from INPI

LINGUETA DE FITA ADESIVA PARA A ABERTURA DE EMBALAGENS.

Em AnáliseInvention Patent

Application data

Number

PI8606747

Type

Invention Patent

Filing

05/16/1986

Publication

10/13/1987

Progress at the INPI

  1. Filing05/16/86
  2. Publication10/13/87
  3. Examination03/07/89
  4. Allowance06/05/90
  5. Grant12/26/90
  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: 03/07/1989. 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

C. L. (pessoa física)

US

J. E. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

747.976 · 06/24/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/07/1989

RPI 959

Notificação de entrada na fase nacional - PCT

#1.3

10/13/1987

RPI 886

Carta-patente expirada

#21.1

Patente extinta em 16/05/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

12/26/1990

RPI 1047

Notificação para pagamento de retribuição

#13.1

09/18/1990

RPI 1033

Deferimento

#9.1

06/05/1990

RPI 1021

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