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

Papel de revista revestido de peso leve

Em AnáliseInvention Patent

Application data

Number

PI8005984

Type

Invention Patent

Filing

09/18/1980

Publication

-

Progress at the INPI

  1. Filing09/18/80
  2. Publication
  3. Examination
  4. Allowance09/01/87
  5. Grant09/01/92
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ECC International Limited

GB

English Clays Lovering Pochin & Company Limited

GB

See this company's full portfolio

Inventors

R. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

7932458 · 09/19/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

101

11/01/1988

RPI 941

14.4

04/26/1988

RPI 914

Recurso

#12.1

01/19/1988

RPI 900

Deferimento

#9.1

09/01/1987

RPI 880

Republicação - classificação IPC

#15.11

10/02/1984

RPI 728

Conhecimento de parecer técnico

#7.1

01/31/1984

RPI 693

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09C 3/04; D21H 1/22.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

Concessão da patente

#16.1

09/01/1992

RPI 1135

Patent monitoring

Track this patent in real time.

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