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

ANEL DE VEDAÇÃO DE ÁRVORE RADIAL.

DeferidaInvention Patent

Application data

Number

PI8505452

Type

Invention Patent

Filing

11/01/1985

Publication

12/16/1986

Progress at the INPI

  1. Filing11/01/85
  2. Publication12/16/86
  3. Examination03/24/87
  4. Allowance11/21/89
  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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. F. (pessoa física)

DE

Carl Freudenberg, firma alemã

DE

See this company's full portfolio

Inventors

D. F. (pessoa física)

DE

W. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 35 01 066.5 · 01/15/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/21/1989

RPI 996

Exigência - art. 36 da LPI

#6.1

02/21/1989

RPI 957

Solicitação de exame técnico

#4.1

03/24/1987

RPI 857

Publicação do pedido de patente

#3.1

12/16/1986

RPI 843

Pedido de patente depositado

#2.1

01/14/1986

RPI 795

Carta-patente expirada

#21.1

Patente extinta em 01/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

02/13/1991

RPI 1054

110

10/09/1990

RPI 1036

Recurso

#12.1

05/15/1990

RPI 1018

Patent monitoring

Track this patent in real time.

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