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

SEM TITULO

Em AnáliseInvention Patent
Talk to an expert

Application data

Number

PI7408596

Type

Invention Patent

Filing

10/16/1974

Publication

-
View on INPI

Progress at the INPI

  1. Filing10/16/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Expired10/26/93

The letters patent expired on 10/26/1993: 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: 08/01/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

C07C 209/00C07C 211/50C07C 67/00C08G 18/00C08G 18/10C08G 18/65C08G 59/00C08G 59/68C08K 5/17C08K 5/18C08L 1/00C08L 101/00C08L 21/00C08L 23/00C08L 27/00C08L 7/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

08/01/1989

RPI 980

Pedido de licença compulsória

#20.1

12/13/1988

RPI 947

18.8

07/21/1987

RPI 874

Anuidade - prazo legal encerrado

#18.2

06/02/1987

RPI 867

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C07C 87/52.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

10/26/1993

RPI 1195

Related

Patent monitoring

Track this patent in real time.

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