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

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7806349

Type

Invention Patent

Filing

09/26/1978

Publication

-

Progress at the INPI

  1. Filing09/26/78
  2. Publication
  3. Examination
  4. Allowance08/10/82
  5. Grant03/29/83
  6. Terminated04/27/93

The patent was granted on 03/29/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Qt-Engenharia e Equipamentos S/A

SP, BR

Inventors

F. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

04/12/1988

RPI 912

Cessão de direito de exploração

#22.1

06/18/1985

RPI 765

Concessão da patente

#16.1

03/29/1983

RPI 649

Deferimento

#9.1

08/10/1982

RPI 616

14.4

04/06/1982

RPI 598

15

12/15/1981

RPI 582

Exigência - art. 36 da LPI

#6.1

11/17/1981

RPI 578

Anuidade - prazo legal encerrado

#18.2

04/27/1993

RPI 1169

Patent monitoring

Track this patent in real time.

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