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Official data from INPI

ARTIGO EXTRUDADO, E, PROCESSO PARA FABRICAR UM ARTIGO EXTRUDADO

PublicadaInvention Patent

Application data

Number

PI8802693

Type

Invention Patent

Filing

06/03/1988

Publication

12/27/1988

Progress at the INPI

  1. Filing06/03/88
  2. Publication12/27/88
  3. Examination12/18/90
  4. Allowance07/23/96
  5. Grant05/27/97
  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: 12/27/1988. 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

D. W. (pessoa física)

US

R. Z. (pessoa física)

US

W. J. (pessoa física)

US

Technical data

Priority claims

US

058,565 · 06/05/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/27/1988

RPI 949

Pedido de patente depositado

#2.1

10/25/1988

RPI 940

Carta-patente expirada

#21.1

Patente extinta em 03/06/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

05/27/1997

RPI 1382

Notificação para pagamento de retribuição

#13.1

03/25/1997

RPI 1373

Deferimento

#9.1

07/23/1996

RPI 1338

Exigência - art. 36 da LPI

#6.1

09/19/1995

RPI 1294

Solicitação de exame técnico

#4.1

12/18/1990

RPI 1046

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