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

COMPOSIÇÃO CURÁVEL DE SILICONE

Em AnáliseInvention PatentPCT · US1986002442

Application data

Number

PI8606977

Type

Invention Patent

Filing

11/12/1986

Publication

11/03/1987

PCT

US1986002442

Progress at the INPI

  1. Filing11/12/86
  2. Publication11/03/87
  3. Examination08/08/89
  4. Allowance03/19/96
  5. Grant12/31/96
  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: 08/08/1989. 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

H. A. (pessoa física)

US

T. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

798737 · 11/15/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/08/1989

RPI 981

Notificação de entrada na fase nacional - PCT

#1.3

11/03/1987

RPI 889

Carta-patente expirada

#21.1

Patente extinta em 12/11/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

12/31/1996

RPI 1361

Deferimento

#9.1

03/19/1996

RPI 1320

Exigência - art. 36 da LPI

#6.1

02/07/1995

RPI 1262

Exigência - art. 36 da LPI

#6.1

09/14/1993

RPI 1189

Patent monitoring

Track this patent in real time.

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