(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

VEDAÇÃO DE CASSETE

Em AnáliseInvention Patent

Application data

Number

PI8704789

Type

Invention Patent

Filing

09/17/1987

Publication

06/14/1988

Progress at the INPI

  1. Filing09/17/87
  2. Publication06/14/88
  3. Examination10/04/88
  4. Allowance07/02/91
  5. Grant04/27/93
  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: 02/21/1989. 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

G. F. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 38 515.8 · 11/11/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

02/21/1989

RPI 957

Solicitação de exame técnico

#4.1

10/04/1988

RPI 937

Publicação do pedido de patente

#3.1

06/14/1988

RPI 921

Pedido de patente depositado

#2.1

12/01/1987

RPI 893

Carta-patente expirada

#21.1

Patente extinta em 17/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/27/1993

RPI 1169

136

02/16/1993

RPI 1159

Deferimento

#9.1

07/02/1991

RPI 1074

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.