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

PROCESSO E APARELHO PARA MEDIR A RETRO-REFLETIVIDADE DE UMA CAMADA REFLETORA SOBRE UMA SUPERFÍCIE

Em AnáliseInvention Patent

Application data

Number

PI8601729

Type

Invention Patent

Filing

04/17/1986

Publication

12/16/1986

Progress at the INPI

  1. Filing04/17/86
  2. Publication12/16/86
  3. Examination04/28/87
  4. Allowance01/08/91
  5. Grant08/27/91
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Potters Industries, Inc.

US

Inventors

R. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

724.774 · 04/18/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/28/1987

RPI 862

Publicação do pedido de patente

#3.1

12/16/1986

RPI 843

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Carta-patente expirada

#21.1

Patente extinta em 17/04/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/27/1991

RPI 1082

Notificação para pagamento de retribuição

#13.1

04/23/1991

RPI 1064

Deferimento

#9.1

01/08/1991

RPI 1049

Exigência - art. 36 da LPI

#6.1

08/14/1990

RPI 1028

Related

Patent monitoring

Track this patent in real time.

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