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

PROCESSO PARA O TRATAMENTO DE ACIDO FOSFORICO

ConcedidaInvention Patent
Talk to an expert

Application data

Number

PI7806482

Type

Invention Patent

Filing

09/29/1977

Publication

-
View on INPI

Progress at the INPI

  1. Filing09/29/77
  2. Publication
  3. Examination
  4. Allowance12/11/84
  5. Grant06/25/85
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 06/25/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TRIOMF FERTILIZER LTD

Inventors

G. J. (pessoa física)

W. C. (pessoa física)

Technical data

IPC Classification

C01B 25/18C01B 25/42

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Exigência - art. 36 da LPI

#6.1

06/22/1982

RPI 609

6.2

12/29/1981

RPI 584

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

Related

Patent monitoring

Track this patent in real time.

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