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Official data from INPI

COMPOSIÇÃO DE GOMA ELASTÔMERA DE FLUORCARBONETO.

Em AnáliseInvention Patent

Application data

Number

PI8500695

Type

Invention Patent

Filing

02/14/1985

Publication

10/01/1985

Progress at the INPI

  1. Filing02/14/85
  2. Publication10/01/85
  3. Examination11/03/87
  4. Allowance02/02/93
  5. Grant07/27/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 11/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dyneon LLC

US

Minnesota Mining and Manufacturing Company

US

Inventors

R. G. (pessoa física)

US

R. K. (pessoa física)

US

Technical data

Priority claims

US

583.762 · 02/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/03/1987

RPI 889

Publicação do pedido de patente

#3.1

10/01/1985

RPI 780

Pedido de patente depositado

#2.1

05/21/1985

RPI 761

Carta-patente expirada

#21.1

Patente extinta em 14/02/2000

07/15/2008

RPI 1958

Transferência deferida

#25.1

Transferido de: Minnesota Mining And Manufacturing Company

09/22/1998

RPI 1448

Concessão da patente

#16.1

07/27/1993

RPI 1182

Notificação para pagamento de retribuição

#13.1

05/18/1993

RPI 1172

Deferimento

#9.1

02/02/1993

RPI 1157

Exigência - art. 36 da LPI

#6.1

01/21/1992

RPI 1103

Republicação - classificação IPC

#15.11

10/15/1991

RPI 1089

Exigência - art. 36 da LPI

#6.1

05/07/1991

RPI 1066

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