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Official data from INPI

TELA FIBROSA DE FIBRAS TERMOPLÁSTICAS BICOMPONENTES SOPRADAS

DeferidaInvention Patent

Application data

Number

PI8405112

Type

Invention Patent

Filing

10/10/1984

Publication

08/27/1985

Progress at the INPI

  1. Filing10/10/84
  2. Publication08/27/85
  3. Examination08/04/87
  4. Allowance09/05/89
  5. Grant03/20/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 09/05/1989. 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

D. K. (pessoa física)

US

J. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

540,543 · 10/11/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/05/1989

RPI 985

Exigência - art. 36 da LPI

#6.1

01/31/1989

RPI 954

Exigência - art. 36 da LPI

#6.1

08/30/1988

RPI 932

Solicitação de exame técnico

#4.1

08/04/1987

RPI 876

Concessão da patente

#16.1

03/25/1986

RPI 805

Publicação do pedido de patente

#3.1

08/27/1985

RPI 775

Pedido de patente depositado

#2.1

12/26/1984

RPI 740

Carta-patente expirada

#21.1

Patente extinta em 10/10/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

03/20/1990

RPI 1010

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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