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Official data from INPI

PROCESSO PARA A PRODUCAO DE CORPOS MOLDADOS ELASTICOS

ConcedidaInvention Patent

Application data

Number

PI7703229

Type

Invention Patent

Filing

05/21/1976

Publication

-

Progress at the INPI

  1. Filing05/21/76
  2. Publication
  3. Examination
  4. Allowance07/09/85
  5. Grant09/29/87
  6. Expired11/03/93

The letters patent expired on 11/03/1993: 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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BAYER AG

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Inventors

S. H. (pessoa física)

W. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

110

04/07/1987

RPI 859

120

10/14/1986

RPI 834

Recurso

#12.1

11/05/1985

RPI 785

Deferimento

#9.1

07/09/1985

RPI 768

Carta-patente expirada

#21.1

11/03/1993

RPI 1196

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