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Official data from INPI

ROLO REGULADOR DE DEFORMAÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8701651

Type

Invention Patent

Filing

04/08/1987

Publication

01/12/1988

Progress at the INPI

  1. Filing04/08/87
  2. Publication01/12/88
  3. Examination06/28/88
  4. Allowance06/04/91
  5. Grant03/31/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kleinewefers GmbH

DE

See this company's full portfolio

Inventors

D. P. (pessoa física)

DE

R. W. (pessoa física)

DE

Technical data

Priority claims

DE

P 36 11 859.1 · 04/09/1986

DE

P 36 44 170.8 · 12/23/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/28/1988

RPI 923

Publicação do pedido de patente

#3.1

01/12/1988

RPI 899

Pedido de patente depositado

#2.1

07/14/1987

RPI 873

Carta-patente expirada

#21.1

Patente extinta em 08/04/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/31/1992

RPI 1113

Notificação para pagamento de retribuição

#13.1

10/01/1991

RPI 1087

Deferimento

#9.1

06/04/1991

RPI 1070

Exigência - art. 36 da LPI

#6.1

12/26/1990

RPI 1047

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