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Official data from INPI

ANEL DE VEDAÇÃO DE EIXO

Em AnáliseInvention Patent

Application data

Number

PI8005262

Type

Invention Patent

Filing

08/20/1980

Publication

-

Progress at the INPI

  1. Filing08/20/80
  2. Publication
  3. Examination
  4. Allowance12/29/87
  5. Grant03/20/90
  6. Expired10/03/95

The letters patent expired on 10/03/1995: 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: 11/07/1989. 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 29 34 487.4 · 08/25/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

110

11/07/1989

RPI 994

120

02/21/1989

RPI 957

Recurso

#12.1

04/12/1988

RPI 912

Deferimento

#9.1

12/29/1987

RPI 897

Pedido de certificado de adição de invenção

#5.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

10/03/1995

RPI 1296

Concessão da patente

#16.1

03/20/1990

RPI 1010

Notificação para pagamento de retribuição

#13.1

01/23/1990

RPI 1003

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