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Official data from INPI

PROCESSO PARA REVESTIR UM OBJETO SÓLIDO COM UM MATERIAL POLIMÉRICO

PublicadaInvention Patent

Application data

Number

PI8901934

Type

Invention Patent

Filing

04/24/1989

Publication

11/28/1989

Progress at the INPI

  1. Filing04/24/89
  2. Publication11/28/89
  3. Examination11/12/91
  4. Allowance10/10/95
  5. Grant07/30/96
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. V. (pessoa física)

NL

Shell Internationale Research Maatschappij B.V

NL

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Inventors

E. G. (pessoa física)

US

Technical data

Priority claims

US

185,577 · 04/25/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/28/1989

RPI 997

Pedido de patente depositado

#2.1

05/30/1989

RPI 971

Carta-patente expirada

#21.1

Patente extinta em 24/04/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

07/30/1996

RPI 1339

Republicação - classificação IPC

#15.11

10/24/1995

RPI 1299

Deferimento

#9.1

10/10/1995

RPI 1297

Exigência - art. 36 da LPI

#6.1

04/25/1995

RPI 1273

Solicitação de exame técnico

#4.1

11/12/1991

RPI 1093

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