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

ELEMENTO DE ENGAXETAMENTO

Em AnáliseInvention Patent

Application data

Number

PI7806820

Type

Invention Patent

Filing

11/01/1977

Publication

-

Progress at the INPI

  1. Filing11/01/77
  2. Publication
  3. Examination
  4. Allowance09/28/82
  5. Grant04/26/83
  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: 07/16/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NORTON CO

See this company's full portfolio

Inventors

P. K. (pessoa física)

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

320

07/16/1985

RPI 769

Republicação - classificação IPC

#15.11

07/02/1985

RPI 767

300

05/14/1985

RPI 760

201

01/08/1985

RPI 742

Pedido de licença voluntária

#17.1

06/26/1984

RPI 714

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

02/01/1983

RPI 641

Deferimento

#9.1

09/28/1982

RPI 623

Exigência - art. 36 da LPI

#6.1

04/06/1982

RPI 598

6.3

03/23/1982

RPI 596

Exigência - art. 36 da LPI

#6.1

12/01/1981

RPI 580

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

Patent monitoring

Track this patent in real time.

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