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

PROCESSO PARA RECUPERAR CALOR SECUNDÁRIO NA DIGESTÃO DE CELULOSE POR BATELADAS, EM DIGESTORES.

Em AnáliseInvention Patent

Application data

Number

PI8002271

Type

Invention Patent

Filing

04/11/1980

Publication

-

Progress at the INPI

  1. Filing04/11/80
  2. Publication
  3. Examination12/14/82
  4. Allowance05/22/84
  5. Grant11/27/84
  6. Expired06/06/95

The letters patent expired on 06/06/1995: 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: 04/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AB ROSENBLADS PATENTER

Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Priority claims

SE

7906540-5 · 08/01/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

04/05/1988

RPI 911

20.4

05/07/1985

RPI 759

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Exigência - art. 36 da LPI

#6.1

12/06/1983

RPI 685

Solicitação de exame técnico

#4.1

12/14/1982

RPI 634

Carta-patente expirada

#21.1

06/06/1995

RPI 1279

Patent monitoring

Track this patent in real time.

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