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Official data from INPI

PROCESSO DE CURTIMENTO AO CROMO DE COUROS DESCARNADOS E DEPILADOS PIQUELADOS

PublicadaInvention Patent
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Application data

Number

PI8804055

Type

Invention Patent

Filing

08/11/1988

Publication

03/07/1989
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Progress at the INPI

  1. Filing08/11/88
  2. Publication03/07/89
  3. Examination06/11/91
  4. Allowance06/14/94
  5. Grant01/31/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 03/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

DE

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Inventors

B. W. (pessoa física)

DE

D. M. (pessoa física)

DE

H. K. (pessoa física)

DE

H. R. (pessoa física)

DE

Technical data

IPC Classification

C14C 3/06C14C 3/08

Priority claims

DE

P 37 26 796.5 · 08/12/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/07/1989

RPI 959

Pedido de patente depositado

#2.1

01/03/1989

RPI 950

Carta-patente expirada

#21.1

Patente extinta em 11/08/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

01/31/1995

RPI 1261

Notificação para pagamento de retribuição

#13.1

10/18/1994

RPI 1246

Deferimento

#9.1

06/14/1994

RPI 1228

Solicitação de exame técnico

#4.1

06/11/1991

RPI 1071

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