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

MATERIAL EM PELICULA ELETRICAMENTE ISOLANTE,FLEXIVEL,RETARDADOR DE CHAMA

ConcedidaInvention Patent

Application data

Number

PI7902728

Type

Invention Patent

Filing

05/05/1978

Publication

-

Progress at the INPI

  1. Filing05/05/78
  2. Publication
  3. Examination12/15/81
  4. Allowance01/31/84
  5. Grant09/25/84
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

See this company's full portfolio

Inventors

G. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

05/15/1984

RPI 708

Deferimento

#9.1

01/31/1984

RPI 693

Conhecimento de parecer técnico

#7.1

07/05/1983

RPI 663

6.2

06/22/1982

RPI 609

Solicitação de exame técnico

#4.1

12/15/1981

RPI 582

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

Patent monitoring

Track this patent in real time.

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