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Official data from INPI

PROCESSO E DISPOSITIVO PARA A SEPARAÇÃO DE CORPOS ESTRANHOS DE FLOCOS DE FIBRAS DE ALGODÃO

ConcedidaInvention Patent

Application data

Number

PI8200611

Type

Invention Patent

Filing

02/04/1982

Publication

12/14/1982

Progress at the INPI

  1. Filing02/04/82
  2. Publication12/14/82
  3. Examination01/08/85
  4. Allowance02/12/86
  5. Grant08/26/86
  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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Trutzschler GMBH & Co KG

DE

See this company's full portfolio

Inventors

W. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 31 03 844.1 · 02/05/1981

DE

P 31 09 154.7 · 03/11/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

07/09/1985

RPI 768

Solicitação de exame técnico

#4.1

01/08/1985

RPI 742

Publicação do pedido de patente

#3.1

12/14/1982

RPI 634

Pedido de patente depositado

#2.1

03/30/1982

RPI 597

Carta-patente expirada

#21.1

Patente extinta em 04/02/97

07/01/2008

RPI 1956

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