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

FILME FLEXÍVEL DELGADO FORMADO DE UM MATERIAL POLIMÉRICO TRANSPARENTE E CONDUTO DE LUZ

Em AnáliseInvention Patent

Application data

Number

PI8605708

Type

Invention Patent

Filing

11/19/1986

Publication

08/18/1987

Progress at the INPI

  1. Filing11/19/86
  2. Publication08/18/87
  3. Examination11/28/89
  4. Allowance01/30/96
  5. Grant07/30/96
  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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

See this company's full portfolio

Inventors

S. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

799.869 · 11/21/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/28/1989

RPI 997

Publicação do pedido de patente

#3.1

08/18/1987

RPI 878

Pedido de patente depositado

#2.1

04/14/1987

RPI 860

Carta-patente expirada

#21.1

Patente extinta em 19/11/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

07/30/1996

RPI 1339

100

01/30/1996

RPI 1313

Petição de recurso

#12.2

05/23/1995

RPI 1277

Indeferimento

#9.2

01/31/1995

RPI 1261

Conhecimento de parecer técnico

#7.1

07/19/1994

RPI 1233

6.2

08/07/1990

RPI 1027

Related

Same category

Patent monitoring

Track this patent in real time.

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