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Official data from INPI

PROCESSO PARA PREPARAR FOSFITOS AROMATICOS-ALIFATICOS MISTOS

ConcedidaInvention Patent
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Application data

Number

PI7701298

Type

Invention Patent

Filing

03/04/1976

Publication

-
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Progress at the INPI

  1. Filing03/04/76
  2. Publication
  3. Examination
  4. Allowance11/30/82
  5. Grant06/28/83
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 06/28/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. W. (pessoa física)

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Inventors

Y. J. (pessoa física)

Technical data

IPC Classification

C07F 9/141C08L 101/00C08L 23/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1983

RPI 662

Notificação para pagamento de retribuição

#13.1

05/10/1983

RPI 655

Deferimento

#9.1

11/30/1982

RPI 632

14.1

08/10/1982

RPI 616

Deferimento

#9.1

04/27/1982

RPI 601

6.2

12/29/1981

RPI 584

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

20.4

10/22/1991

RPI 1090

20.4

10/15/1991

RPI 1089

Pedido de licença compulsória

#20.1

10/08/1991

RPI 1088

Pedido de licença compulsória

#20.1

10/01/1991

RPI 1087

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