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Official data from INPI

COMPOSIÇÃO, SOLUÇÃO DE REVESTIMENTO E ARTIGO

ConcedidaInvention Patent

Application data

Number

PI8204066

Type

Invention Patent

Filing

07/13/1982

Publication

07/05/1983

Progress at the INPI

  1. Filing07/13/82
  2. Publication07/05/83
  3. Examination10/01/85
  4. Allowance06/14/88
  5. Grant12/27/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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

R. P. (pessoa física)

US

R. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

283,286 · 07/14/1981

US

283,292 · 07/14/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

10/20/1987

RPI 887

Solicitação de exame técnico

#4.1

10/01/1985

RPI 780

Publicação do pedido de patente

#3.1

07/05/1983

RPI 663

Pedido de patente depositado

#2.1

08/24/1982

RPI 618

Carta-patente expirada

#21.1

Patente extinta em 13/07/97

07/01/2008

RPI 1956

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