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Official data from INPI

COMPOSIÇÃO DE VEDAÇÃO OU SELAGEM, CURÁVEL, DE DUAS PARTES, ARMAZENADAS SEPARADAMENTE, PARA EVITAR VAZAMENTO EM ESTRUTURAS APÓS CURA

Em AnáliseInvention Patent

Application data

Number

PI8504643

Type

Invention Patent

Filing

09/23/1985

Publication

07/15/1986

Progress at the INPI

  1. Filing09/23/85
  2. Publication07/15/86
  3. Examination08/09/88
  4. Allowance02/11/92
  5. Grant10/27/92
  6. Terminated09/19/95

The patent was granted on 10/27/1992 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/09/1988. 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

A. G. (pessoa física)

US

C. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

655.631 · 09/28/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/09/1988

RPI 929

Publicação do pedido de patente

#3.1

07/15/1986

RPI 821

Pedido de patente depositado

#2.1

12/03/1985

RPI 789

Anuidade - prazo legal encerrado

#18.2

09/19/1995

RPI 1294

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

07/28/1992

RPI 1130

Deferimento

#9.1

02/11/1992

RPI 1106

Republicação - classificação IPC

#15.11

11/05/1991

RPI 1092

Exigência - art. 36 da LPI

#6.1

05/07/1991

RPI 1066

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