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Official data from INPI

CILINDRO ROTATIVO COM UM ANEL DE ROLAMENTO

ConcedidaInvention Patent

Application data

Number

PI8402301

Type

Invention Patent

Filing

05/16/1983

Publication

12/26/1984

Progress at the INPI

  1. Filing05/16/83
  2. Publication12/26/84
  3. Examination06/17/86
  4. Allowance11/10/87
  5. Grant06/28/88
  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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KRUPP POLYSIUS AG [DE]

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Inventors

A. K. (pessoa física)

G. H. (pessoa física)

H. H. (pessoa física)

L. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

06/17/1986

RPI 817

Publicação do pedido de patente

#3.1

12/26/1984

RPI 740

Pedido de patente depositado

#2.1

07/24/1984

RPI 718

Carta-patente expirada

#21.1

Patente extinta em 15/05/99

08/19/2008

RPI 1963

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