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

GRADE ÓPTICA

ConcedidaInvention Patent

Application data

Number

PI8200405

Type

Invention Patent

Filing

01/22/1982

Publication

11/30/1982

Progress at the INPI

  1. Filing01/22/82
  2. Publication11/30/82
  3. Examination04/05/83
  4. Allowance10/22/85
  5. Grant06/24/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. S. (pessoa física)

MX

Inventors

M. M. (pessoa física)

MX

Technical data

IPC Classification

Priority claims

MX

185.667 · 01/23/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/15/1986

RPI 808

Deferimento

#9.1

10/22/1985

RPI 783

Solicitação de exame técnico

#4.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

04/05/1983

RPI 650

Publicação do pedido de patente

#3.1

11/30/1982

RPI 632

2.3

11/16/1982

RPI 630

Pedido de patente depositado

#2.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

Patente extinta em 22/01/97

07/01/2008

RPI 1956

Patent monitoring

Track this patent in real time.

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