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

COMPOSIÇÃO CATALÍTICA IMPREGNADA COM ORGANO-POLISSULFETO, PROCESSO PARA PREPAAR UM CATALISADOR IMPREGNADO COM ORGANO-POLISSULFETO, E, PROCESSO PARA HIDRATAR PETRÓLEO OU OUTRA CARGA DE HIDROCARBONETO

Em AnáliseInvention Patent

Application data

Number

PI8505906

Type

Invention Patent

Filing

11/25/1985

Publication

08/19/1986

Progress at the INPI

  1. Filing11/25/85
  2. Publication08/19/86
  3. Examination11/11/86
  4. Allowance10/01/91
  5. Grant08/25/92
  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: 11/11/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. C. (pessoa física)

US

See this company's full portfolio

Inventors

D. S. (pessoa física)

US

W. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

675165 · 11/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/11/1986

RPI 838

Publicação do pedido de patente

#3.1

08/19/1986

RPI 826

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

Carta-patente expirada

#21.1

Patente extinta em 25/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

08/25/1992

RPI 1134

Republicação - classificação IPC

#15.11

08/11/1992

RPI 1132

14.4

12/31/1991

RPI 1100

Deferimento

#9.1

10/01/1991

RPI 1087

Exigência - art. 36 da LPI

#6.1

02/19/1991

RPI 1055

Related

From the same holder

Patent monitoring

Track this patent in real time.

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