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Official data from INPI

ANEL DE VEDAÇÃO DE EIXO RADIAL.

DeferidaInvention Patent

Application data

Number

PI8301070

Type

Invention Patent

Filing

03/04/1983

Publication

11/22/1983

Progress at the INPI

  1. Filing03/04/83
  2. Publication11/22/83
  3. Examination03/07/84
  4. Allowance11/21/89
  5. Grant12/26/90
  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: 11/21/1989. 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. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 32 09 926.6 · 03/18/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/21/1989

RPI 996

Pedido de certificado de adição de invenção

#5.1

07/31/1984

RPI 719

Solicitação de exame técnico

#4.1

03/07/1984

RPI 698

Publicação do pedido de patente

#3.1

11/22/1983

RPI 683

Pedido de patente depositado

#2.1

04/19/1983

RPI 652

Carta-patente expirada

#21.1

Patente extinta em 04/03/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

12/26/1990

RPI 1047

110

10/23/1990

RPI 1038

Recurso

#12.1

05/15/1990

RPI 1018

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