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Official data from INPI

ANEL DE VEDAÇÃO DE EIXO RADIAL

DeferidaInvention Patent

Application data

Number

PI8502521

Type

Invention Patent

Filing

05/28/1985

Publication

12/23/1986

Progress at the INPI

  1. Filing05/28/85
  2. Publication12/23/86
  3. Examination03/31/87
  4. Allowance10/17/89
  5. Grant02/13/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Carl Freudenberg, firma alemã

DE

See this company's full portfolio

Inventors

H. F. (pessoa física)

DE

W. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 34 40 797.9 · 11/08/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/17/1989

RPI 991

Exigência - art. 36 da LPI

#6.1

12/27/1988

RPI 949

Solicitação de exame técnico

#4.1

03/31/1987

RPI 858

Publicação do pedido de patente

#3.1

12/23/1986

RPI 844

Pedido de patente depositado

#2.1

08/06/1985

RPI 772

Carta-patente expirada

#21.1

Patente extinta em 28/05/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

02/13/1991

RPI 1054

110

11/13/1990

RPI 1041

Recurso

#12.1

04/10/1990

RPI 1013

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