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Official data from INPI

PACOTE DE DISTRIBUIÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8602858

Type

Invention Patent

Filing

06/19/1986

Publication

03/17/1987

Progress at the INPI

  1. Filing06/19/86
  2. Publication03/17/87
  3. Examination09/19/89
  4. Allowance01/15/91
  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: 09/19/1989. 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

T. M. (pessoa física)

US

Technical data

Priority claims

US

747.337 · 06/21/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/19/1989

RPI 987

Publicação do pedido de patente

#3.1

03/17/1987

RPI 856

Pedido de patente depositado

#2.1

02/17/1987

RPI 852

Carta-patente expirada

#21.1

Patente extinta em 19/06/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/27/1991

RPI 1082

Republicação - classificação IPC

#15.11

07/23/1991

RPI 1077

Notificação para pagamento de retribuição

#13.1

04/30/1991

RPI 1065

Deferimento

#9.1

01/15/1991

RPI 1050

6.2

08/28/1990

RPI 1030

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