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Official data from INPI

ARTIGO PARA O TRATAMENTO DE SUPERFÍCIE, FIBROSO, FLEXÍVEL E ELÁSTICO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002160

Type

Invention Patent

Filing

05/09/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/09/90
  2. Publication08/13/91
  3. Examination10/26/93
  4. Allowance08/27/96
  5. Grant04/29/97
  6. Expired05/18/10

The letters patent expired on 05/18/2010: 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: 05/18/2010. 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

J. M. (pessoa física)

US

Technical data

Priority claims

US

350,049 · 05/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/05/2005

05/18/2010

RPI 2054

Concessão da patente

#16.1

04/29/1997

RPI 1378

Notificação para pagamento de retribuição

#13.1

03/25/1997

RPI 1373

Deferimento

#9.1

08/27/1996

RPI 1343

Exigência - art. 36 da LPI

#6.1

12/12/1995

RPI 1306

Solicitação de exame técnico

#4.1

10/26/1993

RPI 1195

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

09/18/1990

RPI 1033

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