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

PROCESSO PARA A OBTENÇÃO ELETROLÍTICA DE ÁCIDO CRÔMICO

Arquivada/ExtintaInvention Patent
Talk to an expert

Application data

Number

PI9006392

Type

Invention Patent

Filing

12/14/1990

Publication

09/24/1991
View on INPI

Progress at the INPI

  1. Filing12/14/90
  2. Publication09/24/91
  3. Examination12/28/93
  4. Allowance09/21/99
  5. Grant02/22/00
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

DE

See this company's full portfolio

Inventors

H. B. (pessoa física)

L. S. (pessoa física)

N. L. (pessoa física)

R. W. (pessoa física)

Technical data

IPC Classification

B01J 47/12C25B 1/22C25B 13/08C25C 1/10

Priority claims

DE

P 39 41 569.4 · 12/16/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/12/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

02/22/2000

RPI 1520

Deferimento

#9.1

09/21/1999

RPI 1498

Exigência - art. 36 da LPI

#6.1

11/10/1998

RPI 1453

Exigência - art. 36 da LPI

#6.1

04/22/1998

RPI 1426

Solicitação de exame técnico

#4.1

12/28/1993

RPI 1204

Publicação do pedido de patente

#3.1

09/24/1991

RPI 1086

Pedido de patente depositado

#2.1

06/04/1991

RPI 1070

Related

Patent monitoring

Track this patent in real time.

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