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Official data from INPI

COMPOSIÇÃO TERMOPLÁSTICA.

Em AnáliseInvention Patent

Application data

Number

PI8105115

Type

Invention Patent

Filing

08/07/1981

Publication

04/27/1982

Progress at the INPI

  1. Filing08/07/81
  2. Publication04/27/82
  3. Examination08/28/84
  4. Allowance06/12/90
  5. Grant11/27/90
  6. In force08/07/01

The patent was granted on 11/27/1990 and is in force until 08/07/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:08/07/2001

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Latest action published by the INPI: 05/07/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

T. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

176.783 · 08/11/1980

US

273.418 · 06/15/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

05/07/1985

RPI 759

Pedido de certificado de adição de invenção

#5.1

01/08/1985

RPI 742

Solicitação de exame técnico

#4.1

08/28/1984

RPI 723

Publicação do pedido de patente

#3.1

04/27/1982

RPI 601

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

09/25/1990

RPI 1034

Deferimento

#9.1

06/12/1990

RPI 1022

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