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Official data from INPI

RETIFICADOR PARA REBOLOS

PublicadaInvention Patent

Application data

Number

PI8703906

Type

Invention Patent

Filing

07/29/1987

Publication

04/05/1988

Progress at the INPI

  1. Filing07/29/87
  2. Publication04/05/88
  3. Examination11/20/90
  4. Allowance05/11/93
  5. Grant09/28/93
  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: 04/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ernst Winter & Sohn (GmbH & CO)

DE

Ernst Winter & Sohn (GMBH & Co.)

Inventors

D. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 25 754.0 · 07/30/1986

DE

P 37 06 868.7 · 03/04/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/05/1988

RPI 911

Pedido de patente depositado

#2.1

10/06/1987

RPI 885

Carta-patente expirada

#21.1

Patente extinta em 29/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/28/1993

RPI 1191

Deferimento

#9.1

05/11/1993

RPI 1171

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

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