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Official data from INPI

ARTIGO ABRASIVO COMPREENDENDO AGLOMERADOS ABRASIVOS SUPORTADOS EM UMA MATRIZ FIBROSA

ConcedidaInvention Patent

Application data

Number

PI8108797

Type

Invention Patent

Filing

09/15/1980

Publication

08/24/1982

Progress at the INPI

  1. Filing09/15/80
  2. Publication08/24/82
  3. Examination06/05/84
  4. Allowance12/17/85
  5. Grant06/24/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG [US]

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Inventors

H. [. (pessoa física)

L. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

Exigência - art. 36 da LPI

#6.1

03/05/1985

RPI 750

Solicitação de exame técnico

#4.1

06/05/1984

RPI 711

Notificação de entrada na fase nacional - PCT

#1.3

08/24/1982

RPI 618

Carta-patente expirada

#21.1

Patente extinta em 06/08/96

08/19/2008

RPI 1963

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