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Official data from INPI

COMPOSIÇÃO DE MISTURA PARA SER ADICIONADA A UMA MISTURA DE CIMENTO HIDRÁULICO E MÉTODO PARA AUMENTAR A VELOCIDADE DE CONSOLIDAÇÃO DE CIMENTO HIDRÁULICO

Em AnáliseInvention Patent

Application data

Number

PI8507042

Type

Invention Patent

Filing

11/02/1985

Publication

03/10/1987

Progress at the INPI

  1. Filing11/02/85
  2. Publication03/10/87
  3. Examination07/05/88
  4. Allowance06/25/91
  5. Grant02/04/92
  6. Terminated09/19/95

The patent was granted on 02/04/1992 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sandoz A.G.

CH

See this company's full portfolio

Inventors

A. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

670.772 · 11/13/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/05/1988

RPI 924

Notificação de entrada na fase nacional - PCT

#1.3

03/10/1987

RPI 855

Anuidade - prazo legal encerrado

#18.2

09/19/1995

RPI 1294

Concessão da patente

#16.1

02/04/1992

RPI 1105

Notificação para pagamento de retribuição

#13.1

10/22/1991

RPI 1090

Deferimento

#9.1

06/25/1991

RPI 1073

Exigência - art. 36 da LPI

#6.1

08/14/1990

RPI 1028

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